Brimar date codes. Checked codes in this batch are from 1961.

Brimar date codes The first two characters of the serial number represent the year and month of manufacture. There's many Brimar tubes out there similar to that 12AX7. Brimar valve works Crittail,s Corner -Footscray -KENT - British not Philips owned or otherwise - bought out by UK Thorn in 1960 . Flying Leads Plug&Play CV4035 - Premium 12AX7 ECC83 ECC803S E83CC 7025 CV4004 CV492 M8137 M8214 One of the rarest Brimar Special Types ever produced. Battery Date Code Chart The Brimar has warmth with more depth and more extension at both ends. The Yellow-T tubes are remarkable for their air, realism, and seductive warmth and For example, 19200 translates to the 200th day of 2019, or July 19, 2019. Brand New, 1960s BRIMAR 13D5 Industrial 12AU7 Long Plate tubes. Julian Dates - Normal Calendar Years. NOS I can supply as fairly close matched pairs if required Weight: 0. CV4034 Flying Lead is a Premium Grade, High Reliability Long Life version of CV4003/ECC82/12AU7 valves . The price difference is about 70% more for the Mullards, but I am more than happy to spend it if they are really going to be a big step up in warmth from the Brimars. For instance, in the format “MI1020,” “10” would represent the 10th week of the year, and “20” would indicate the year Gillette Date Codes were used from January 1951 until 2001. This will enable you to understand how the date is represented and enable conversion to a human-readable format. com, including how to read Phillips tube codes (see the yellow box entitled "Euro Tube Codes"), Brand New MINT NOS NIB, Late 1960s Brimar AKA Ediswan Military Production CV5358 with Gold Pins. Enter working codes into the Type Here text box. These are absolutely fantastic! Laid back like a Mullard but more balanced, not so much emphasis on Etched Date Codes are faint and can be read with good light and magnifying glass. STC Footscray Plant Etched Date Codes. 98 + $3. This is called the Julian calendar code. CV4033 Flying Lead is a Premium Grade, High Reliability Long Life version of CV4024/ECC81/12AT7 valves (Click here) - CV4033 premium grade version of the 1960s Black Plate CV4024/6060 is one of the best from Brimar in the ECC81 types. Pair of Brimar ECC88 twin triodes, made by the Brimar Valve works, Footscray Kent. Tight bass. For Matched Pairs, Like New BRIMAR T-Series 6060, Premium 12AT7 Black Plate Tubes. BRIMAR, which stood for BRItish Made American Radio valves, was a brand of tubes that used the US tube designations instead of the UK ones. This page provides the complete NPI Profile along with additional information for Brimar Services, a provider established in Union, New Jersey operating as a Home Health. I. Apr 10, 2023 #3 Here is a list that has been around the web for a long time To properly interpret coded dates in Excel, it is important to first determine the format of the date code. Wonderful airy top end, midrange warmth, and dynamic punchy sound. The date code on a Dior purse or wallet is a combination of digits, letters and dashes organized in a way that lets us know important information about a Dior item. Most lighters fabricated between 1933 and 1957 can be identified by style and model and the patent or patent-pending marks. Bulk-packed (OEM) tubes also carried an "E"; Date code example: FLBP: Enter the 4 character date code: AML Addressable Sensors: Locate the 4 letter date code on the green sticker, or purple stamp on the PCB. Samples: A011, A101, 1A, 0011, 1001 = January 1st, 2011 (A) January 1-31 Open Code Code dating with month, day and year are clearly denoted. Quantity in Stock: 50 pcs Price: US$ 39. “Use-By” dates are the last date recommended to use the product while at peak quality. 055″ Polyethylene Plastic, this sign ensures durability and resistance to harsh conditions. What is Julian Date? The Julian date counts the dates in continuous order, without starting over every month. uk/g8hqp/ I'am very happy to be able to propose you a super rare white print Brimar 6V6GT Black plate , black shield. That's a tube for you maybe BRIMAR VALVE TYPE & DATE CODES - HOW TO INTERPRET THEM Brimar codes come in two In addition a number of valves made by certain British manufacturers (such as some of those made by Mullard and Brimar) are also marked in the American coding. Russian tube eq. 1960’s production. The next code group is under One sure way to determine that a Brimar is a Brimar is to locate Brimar’s date stamp, but that could be hard since Brimar is one of the few European companies that didn’t use acid codes, so they come off very easily and could be completely removed from a tube just by accident. Original boxes. For canned food and ready-to-eat meals, check the packaging for a 5-digit code that signifies when the food was manufactured. Usually, if it is not separately placed on a tire, the DOT or Department of Transportation code holds the age date code. PO Box 1445. 00 . Made in ENGLAND. Flying Leads Plug&Play CV4035 - Premium 12AX7 ECC83 ECC803S E83CC 7025 CV4004 CV492 M8137 M8214 6057 type. Forums. AC30s with original valves. Let’s use the Shakespeare model 1920 Wondereel as an example. In white box from bulk. 29. Apparently Brimar The 2nd way Brimar and Mullard tubes are marked looks like this First photo: KB/AD - "K" meaning civilian tube, "B" meaning UK approved, "AD" is the manufacture code - Thorn-AEI (Brimar), Rochester The second photo: Broad Arrow is the Gov't mark and the date code is below "WG" - "W" being the year, "G" being the month. The code consists of multiple sections and For the date code shown in the picture, the ‘9’ indicates either 1969 or 1979 depending on the change code. The first two digits represent the week of the year while the third or last number indicates the year of manufacture. In progress. The super fragile date code is amazingly still perfect. Early 1960s Tall Plate Square Getter with BVA logo. Date code example: GFBW Date code example: FAJW: Enter the 4 character date code: DSC Wireless Sensors: Locate the sensor ESN label on the sensor. Code dating in which each day is represented by a number. The EL84s are yellow-print Mullards with paint codes for some month in 1963, and "LA" = Jan. Labels are a bit fragile on these tubes since the tubes can rub against the cardboard cone inside the For tires made before 2000, the date is represented by the last three digits of the DOT code. There are several different date codes for this reel. For example, 032927 Brent Jessee has a lot of information about tubes on his website: audiotubes. P. Bought a pair of 6SN7GT triodes from Brimar as I loved the idea of knowledgable experts seeking to recreate a product range that was superb in its heyday. New posts Search forums. Most DEF manufacturers are certified by the API. Originally had about 65 of a 100 tube box. 1960s Blackburn, UK factory date codes. No. add to cart. 1971 DATE CODES. CV4004 KB/AD MILITARY SPEC. ECC88 pair Brimar BVA UK both 1961 reserved (V357/359) € 145,00 Read more; ECC88 pair Brimar BVA UK both 1961 reserved (V358/361) € 145,00 Read more; ECC88 6DJ8 Amperex PQ pair Holland 1971 (V64/65) € 155,00 Add to basket; ECC88 pair Brimar BVA UK same date 1961 reserved (V353/354) € 155,00 Read more; E88CC pair Mullard, Strong specs Etched STC Rochester Plant Date Codes. Protective cover. It's enough to make one mistake, and the code won't work. Promote workplace safety with our Brimar 12" x 18" Bilingual Job Site Dress Code Sign. Celestion Blue loudspeakers. Labels are very fragile. Tube Type: Brand: Box: Description***** Unit Price(yen) Qty. The first two numbers represent the year and the last number (numbers), the month. Tube Summary. 98 $ 22. Look for a series of characters starting with the letters “DOT”. Pairs/Quads/Singles) Single Tube = $ 55. *Most tubes came with 3 factory stickers (See Photos). For over 20 years, I have had the remainder of a Brimar 12AT7 bulk pack. Made in England. Awesome British ECC88 tube. 00 £250. An initial letter (A through L, including I) gives month, followed by the last digit of year. The practitioner's primary taxonomy code is 251E00000X. They can also be JAN-rated and thus be marked JAN-CHS-6SN7GT. The first two letters signify the year of production and the last letter the quarter it was produced in. To read the date stamp on a tyre, you need to locate the DOT code. Highly desirable Brimar 12AU7 type. There are some exceptions and some overlap, but the general idea is this: Tweeds (early 50’s to very early 60s), Browns (1960 – 1962), Blondes (1962 – 1963), Blackface (1963 – 1967), and Silverface (1967 – 1981). BVA Logo, Made in England. There have been three major changes, as show below. 4 - 64. Structure's features: double stage big ring getter. Conditions: New in original box Rating : 1. Add to Wishlist. 6SL7 Date codes were usually in three or four digits, one or two digits giving the year (for many US pots one digit refers to the 1950s, two digits to the 1960s), and two giving the week of the year. Great tubes for Audio and Guitar use. not nos but a nice pair of very hard to find tubes The numbers, on the other hand, reveal the production date in various formats depending on the era of the date code. Labels are a bit fragile on these tubes since the tubes can rub against the cardboard cone inside the box. Brimar date codes. Many Brimar labeled tubes are actually Soviet made. g. in my pre-amp . tiscali. Leave a Reply Cancel reply. Up until the These date codes were not a part of the model number, but a way of tracking changes to the reel over time. Military date code KF KB/FB. 7 ☆David Porter☆ 17,865,180 bytes 2005-10-17 Brimar Radio Valves ☆David Porter☆ 8,755,913 bytes 2017-09-11 Design Data Valves Vol1 American Types. UK does not use the 12AX7 code. *Each tube came with 3 factory stickers (See Photos). Our Brands. (1-365) Code dating represented by letters and numbers. Conditions: NIB Original package : YES. Mullard has the warmth but is more refined, realistic with soft highs. co. They look like the 1955 red label in the Brimar picture here. 3gm A2: 2. All are XF2s, first version: small dark brown base, eight metal pins, hole in the central stem, double getter rings. Understanding how to read a battery date code can help you determine if your battery is still good or if it’s time to replace it. CV4001 premium grade version of the Black Plate With our list of Blox Fruits codes, players can get free beli, an experience boost, or, on the odd occasion, a Blox Fruit stat reset code. In this article, we’ll explore the basics of battery date codes and how to read them. mpholland. The Brimar date codes painted glass are also visible on both tubes: 1J9/3B3 (1 = Week #1 of production month, J = October, 9 = 1959 , 3B3 = pre-1960 code for CV1988) Packaging Here for sale a very nice, super super strong Brimar ecc83 12ax7 Matched pair, UK made. Remember that the tire date code before 2000 has three numbers in the last grouping of the DOT sequence. Year of production: 1963. One of the rarest and most desired preamp tubes ever, very high μ: 150 therefore Cracking the code on Michelin tire date codes might seem like delving into a secret language, but with a bit of guidance, it becomes a valuable skill for assessing tire age and safety. com. DOT M5EJ 006X - Incorrect The engine's code number indicates the exact date it was manufactured. cv1985, brimar, footscray, mil spec 6sl7gt, matched pair, brown micanol base, same white military cartouche with date code for may 1960, ecc35, vt-229, 6sl7 Regular price £250. Add to cart. Then you can use your senses to tell if the food is The current date code has been in effect since the year 2000. From the same batch with same date and factory code ! Code on both tube 2N0 2162 Fully tested, all tests, including for noise floor and microphony, proved to BRIMAR CV1985/FE PAIR Mu 65. CV4001 premium grade version of the CV4005/6X4WA/6063 is one of the best from Brimar. FOR SALE! VERY RARE PAIR OF BRIMAR 12BH7. This date code indicates it was produced in the 4th month of 1983. Date of experience: February 28, 2022. Tubes manufactured during the late 1960s into the 70s were marked with the engineering change code ‘I63’. Delivery date: 7-10 days. It is normal. Tubes: our philosophy. wolf_garcia. Friends & Family ORGANIZER. Add to Cart. Real fine 12AU7 tubes and one of our favorites. ECC83 pair Telefunken, 1960 same date code, NOS specs (V220 / 221 )reserved ECC83 / 12ax7 Brimar 1955! long plates NOS (V131/132) They did not include a date code or other details. Sometimes, these codes are stamped or etched instantly onto the elements themselves. CV1988 6SN7GTY Brimar Valve STC Date Codes are faint and painted on instead of etching in Brimar flying lead type, and may not be visible on all tubes. You must be logged in to post a comment. Brimar STC Etched Date codes on the glass. WHAT YOU SEE YOU BUYUp for Sale 1 Match Pair (2 Pcs) GZ34 5AR4 Brimar MullardMullard Date Code : f32 B2E3 / f32 B8K1"O" Gettermade in EnglandBlack BaseGeneric White BoxThe Photos listed above are of actual Tubes which you are buyingTested Advance Digital Tube Tester Amplitrex AT1000SR. This is called out in the specification for DEF: ISO 22241. Elgas engaged Brimar to undertake a completed Gap Analysis and provide up to date maintenance of the Hazardous Area Equipment. Brimar Industries sells Pipe Markers, Safety Signs, Parking Signs, Traffic Signs, Wafer Seals, and other products direct to customers on the web, with fast shipping and low prices. A Mullard in the right circuit can sound holographic. Top condition. To ensure safe shipping, this tube has been placed in a new white tube box and packaged with care. Thanks Brimar Thermoionic Products UK Ltd. Repacked in white boxes from the 100 pcs bulk box. 11769. 65%=3500 mmhos for 12AT7 on this tester. KB/DA (I have also seen just the slash followed by a one or 2 letter code). Once you have identified the format, you can then use the following key to decode the expiration date code: Enter Date Code How To Read Tyre Date Stamps. 10-19-2017 at 06:13pm . (See photo above) The codes are formatted so the first letter (A-K) indicates the year. Code: . BVA Logo, STC Production. 6sn7gt cv1988 kb/fe brimar stc vintage ‘black beauty’ nos valve tube date code 1971 (lc76) total price: £ 500. Understanding the date code on a battery can be useful in determining its life expectancy. ECC81 Siemens & Halske, Valvo label, same date code V32/33 € 115,00 Add to basket; 12AT7A Pair Brimar (V1/58) € 135,00 Add to basket; 12AT7WA Brimar black plates, copper grid posts NIB (V117/118) € 225,00 Add to basket; ECC81 Pair Mullard same date 1958 NIB special getter! (V158/159) € 255,00 Add to basket "My mono ampex 6v6" be support by 5Y3WGTA Sylvania tube, and I want to buy a better tube to replace 1,Brimar 5Z4G Search Search titles only Start date 2014-06-28 5:01 pm; Status Not open for further replies. First Letter in Date Code = Last Digit of Year: A= XXX8 (1968) being the first year of date codes. Most car batteries last between The 4-digit number within the box are the numbers you need – the date code! Deciphering the date code. These very nice tubes have a grey shield and halo-getter. 00. 3gm 1 in stock. BLACK PLATE, SQUARE GETTER. Crafted from . One of the most interesting things is that the etched codes on top of the glass show 2J2 I24 = 2nd week of October 1962 & I24 = 5R4GY/CV717, this date code gives you a glimpse of the exact date of production, making it a true collector's item. Use the charts below to decipher batch codes. Labeled as Valve Electronic, Black Plates. To avoid missing out on valuable prizes, check this page often so you can redeem codes as soon as possible. IMPERFECT GETTER FLASHING. Based on date codes in the glass, March 1957 production (Footscray plant, England) Used less than 10 hours in my amp, so basically NOS. All tubes have same date/batch code PG, PE or QC KB/Z from MO (Marconi Osram) Valve Company, Hammersmith Plant. 99. VALVES. Military Grade STC Production. On some tube of our batch the code is hardly or no longer visible. Tested and matched on Top of the Line Calibrated Hickok 580 Lab Grade Tester. It might be part of a longer serial number, so it’s important to identify the relevant characters. High amount of bids. Look for a series of four digits that follow the letter combination “DOT. The specification of the Brimar 6AM6 (from 1952) can be seen by following the link to the exhibit, note that the sheet indicates that the valve was 'previously coded 8D3', so it looks like the re-branding away from the 8D3 was complete by this date. Very nice, slightly warm sounding British 6DJ8 tubes at a great price! $99. Very desirable 12AT7/ECC81 type tube for Locating the Date Code: Typically, the date code is stamped on the battery case or printed on a label. The Serial Number Date Code Reference Chart contains date information as part of the overall serial number of your model. brimar tube manual - Free download as PDF File (. It was liberated from the Ediswan factory before it closed down and Early anode current test setup for ECC81 types and equivalents (CV455 , CV4024, 6201, 6679, 6060, 12AT7) At the start of this site the standard ECC81 family tubes were tested in another way. The ECC82 (Amperex sheets) The ECC83 (Mullard) 1957-1968. Acid etched 6SL7GTY. It is not a purchase date or a safety date. In general, black plates have a warmer, more complex, harmonic and identified by the 'R' code etched in the bottom of the glass + a Number and a Letter. Options Total: £ 0 . Very desirable British made tubes. I almost got a kick out of the fact that one of the tools was the first cordless blower to released. DF96. STC Rochester Plant Date Codes: Late 1960s, In military boxes. these are in superb condition and test good. 00 : out of Stock: 6DJ8 Brimar UK old logo, made in Great BritainMATCHED PAIR: New Old Stock white box and original box. “Best if Used By (or Before)” dates indicate for best flavor or quality. The CV4034 is the military quality, wire ended version of the ECC82/12AU7. 00!! $125. Brand: CV1985/FE ZC Type: CV1985/6SL7 Manufacturer and factory: Brimar STC Oldway. com Hours: Tuesday - Saturday, 10 - 6. Indeed, some GE 12AX7 and 7025 tubes from the 1970s were also Mullard made, so they must have made some 6681s for GE as well. "161/2161" is perhaps most common on Feb 27, 2014 The codes used by Philips/Mullard/Valvo etc. Boxes are a bit battered, some missing flaps. If you look at your Brimar 6V6, it probably carries a Russian date code for '68 - like the pair of Brimar 6L6G I have in my shed, which are also marked 6pi3s and probably made by Svetlana. The last 4 digits are the code for the age of the tire. 13D9 is a Special Grade Variant of CV4024/ECC81/12AT7 valves. The first is HB and if you look at the chart below you will find the H falls under the 3 and the B falls under the 9 The code is a series of characters printed on the battery, similar to an expiration date. As mentioned earlier, infant formula is the only food product federal law explicitly BRIMAR CV4033 - Rare 1957 - Mil Black Plate, 3-MICA Halo GT. *FREE* shipping on qualifying offers. Ediswan Mazda 6f12 data. Brimar 6V6GT black coated glass date code :218 422 Z8Packing: White BoxTested on advanced Amplitrex AT1000 Digital tube testerBuy with confidence our company is more than 60year in this tube business and we very much professional in CV4033 premium grade version of the 1960s Black Plate CV4024/6060 is one of the best from Brimar in the ECC81 types. Mullard Blackburn ECC82 long plate square getter UK B- factory code BRIMAR CV493 / U78 / 6X4 British Mil. Brimar tubes even from the same date/batch can have slightly different curvature/shape at the top end of Valves used by the British military Armed Services were marked with a CV or common valve name which was defined by the Inter-Service Technical Valve Committee in Hi, Received a Brimar 5V4G with date marking 'bwb 1257' Any ideaS? Brent Jessee has a lot of information about tubes on his website: audiotubes. 1 in stock. CV4035 premium grade version of the late 1950s-early 1960s Box Plate CV492 aka CV4004 is one of the best from Brimar in the ECC83 types (click Larger Photo). Julian codes represent the number of days since January 1st, while Gregorian codes represent the day, month, and year that the product expires. MADE IN ENGLAND. Quick View. The following one or two characters denote the size code of your tire. The codes Q & AQ are not used. Information Usually single digit date codes are from the 1940’s, but have on Rare 1960 BRIMAR CV4033 Black Plate with Copper Grid Post Military Tubes CV4033 Flying Lead is a Premium Grade High Reliability Long Life version of CV4024/ECC81/12AT7 Valves 1960s Black Plate CV4024/6060 is One of the Best from Brimar in the ECC81 Types STC Rochester Plant Date Codes, Made in England The place to search out Shimano date codes on bicycle elements. DA). 3 Federal regulations require a date code to be present for traceability but do not specify how it's written (see the different phrases listed above). The first 2 numbers represent the year and the last 2 numbers represent the Find many great new & used options and get the best deals for GZ34 Brimar Mullard date code B2E3 /B8K1 Amplitrex AT1000 Tested 1 Match Pair at the best online prices at eBay! Free shipping for many products! Brand New MINT NOS NIB Late 1960s BRIMAR CV493 Black Plates Military Grade 6X4 EZ90 tube. Reading Michelin tire date codes is easy once you know where to look. In this format, “MM” refers to the month, “DD” refers to the day of the month, and “YY” stands for the last two digits in the year. True NOS NIB Date Matched Quad (4) Brimar England CV1947/6L6G Black Plate Tubes; Brimar True NOS NIB Date Matched Quad (4) Brimar England CV1947/6L6G Black Plate Tubes Visible Date Codes: FC KU/N JUN 55 DON 5 Lettering Condition: 75 Percent Number of Mica Spacers: 2 Mica Spacer Shape: Saw Glass Coating: Black Smoked-Half Date codes and the law . This as been useful for identifying dates MULLARD VALVE ETCHED CODES - HOW TO INTERPRET THEM – MULLARD MAGIC I'm looking for a list of codes which matches the manufacture ID to the valve model number. There are many 6067 variants out there, some of them are not even produced by Brimar. Made in UK in the second week of august in 1959. Hard to see without good light and magnifying glass, tubes have faint markings in glass with Brimar 12AX7 BVA and Brimar etched codes. Click on the Check button to claim your free reward. MINT NOS NIB BRIMAR CV4001 Rare 1956 3-MICA Military Black Plate Square Getter tubes. Like New, Early Lightly used, like new Rare 1960s BRIMAR 13D9 Industrial grade with Black Plate and Copper Grid Posts with BVA logo. Boxes are a bit beat up but the tubes are in pristine condition. All of these are essential to your time playing Blox Fruits! Most of these are double XP codes Blox Fruits players can enter for helpful boosts, so you can rank 12AX7 BRIMAR (ECC83) MADE IN ENGLAND. The ECC82 (Mullard) Vibravox, AC30/4 and AC30/6. STC Footscray Plant Date Codes. Brown base. Subscriber. The FDA did not specifically update rules around date codes in the 2022 Food Code. RARE PAIR OF Brimar 12Bh7 Square Getter Same Date Code 1953/4 - £0. Original package : yes. 720001 CV4033 Flying Lead is a Premium Grade, High Reliability Long Life version of CV4024/ECC81/12AT7 valves (Click here) - CV4033 premium grade version of the 1960s Black Plate CV4024/6060 is one of the best from Brimar in the ECC81 types. Matched Pairs, Lightly Used, Like New BRIMAR T-Series 6060, Premium 12AT7 Black Plate Tubes. Finding the date codes in your Shimano bicycle elements is like embarking on a treasure hunt the place the prize is efficacious details about your gear. 6SN7GT BRIMAR. Brimar KB/AD CV2492 E88CC; Brimar E88CC Gold Pin UK Valve Tubes; Amperex Bugle-Boy 6DJ8/ECC88 D getter, date codes: Delta 8K, Delta 8L; 1950’s SYLVANIA - D getter 6922 gold pins (VERY RARE PER AC) 1950s LORENZ STUTTGART - PCC88 Grey shield, 2 mica; 12AU7 variants. W12 or WI2 B1B4 - Mullard PCL86 (W1 is the code) VX5 B1E5 - Mullard PCL85 (VX) IE5 2242 - Brimar ECL82 (2242) WS2 D1J - Valvo ECL86 (WS) although to be honest I'm not sure it looks like an ECL86 7E1 B7C - Mullard PCL82 (7E) VX8 B5A3 - Mullard PCL85 (VX) Just a brief comment on the date code section of the above from a pub in North Lincs Click on the DTI Codes button to open the Type Here text box. This is found under the tank. We reserve the right to deliver either version but guarantee that these are genuine Brimar tubes, even if no code is visible anymore. *From 100 pc bulk boxes, each tube came with two factory stickers (click Larger Photo). MATCHING 7152 DATE CODES. PEN220A BRIMAR NOS VALVE TUBE (Need help decoding the date format? Check out our date code converter. If your DOT code is a 3-digit number, it means your tire was produced before 2000. D. Formed from ‘The Great British Valve Project’ we have used the expertise of many engineers who have provided us with their preferred list of thermionic tubes. The standard US date format is MMDDYY. Popularity - 21 watchers, 7. I am seeking the AD140, branded Mazda or Thorn/Brimar (not Mullard or unbranded). IMPERFECT TEST SCORES. 3ma 1. I have a number of tubes that I cannot identify because the main print has warn off, but I can see the manufacture valve ID and date codes. tested @ 96/92 codes MET -- 2D9 383@ 114/116 codes LCC -- 2D9 383 Brimar thermionic products is the result of the frustration of not being able to purchase high quality valves at a reasonable price. The code is typically located on the sidewall of the tire, near the rim. These 3-Mica tubes are rather obscure and some of the best from the Brimar 12AT7 family. Using the Date Code for Battery Maintenance: Knowing the manufacturing date helps in predicting battery life. The code commences with a number which gives the heater voltage Visible Date Codes: JD Lettering Condition: 100 Percent Number of Mica Spacers: 2 Mica Spacer Shape: Saw Glass Coating: Black Smoked-Full Engraved Base? No Boxes (always included): date codes. Jump to Latest 4X 5C4S 5Z4GT 5U4C Tubes Same Date Codes | eBay . cv1988 kb/fe military spec. Code: 379 3H6 - 379 3G6. Packed in generic white boxes. Brimar tubes even from the same date/batch can have slightly different curvature/shape at the top end of the bottle. PicClick Insights - Rare Pair Of Brimar 12Bh7 Square Getter Same Date Code 1956 PicClick Exclusive. Careers; 800‑274‑6271; Brimar Industries The Safety Solution Company. 00/each Start date Jan 17, 2013; tomlinmgt AK Subscriber. EL 34 variants 25. Brimar Industries Inc has a registered CAGE Code for doing business with the United States government. Brand New MINT NOS NIB Rare 1970 BRIMAR CV4034 Long Plate Military tubes. 1964 codes. But you have to rely in the presence of date codes to tell the difference between some UK and Japanese 5AR4's, for example. The first two digits represent the week of manufacture, and the last digit indicates the year within the decade. Qty: UK made in the late 50s and early 60s. The healthcare provider is registered in the NPI registry with number 1144075136 assigned on April 2024. Here's a thorough date code guide with over 500 examples of what real Louis Vuitton date codes look like compiled by Serial Code Authentic Louis Vuitton Pochette Metis located in back zipped pocket. This is a tremendous help as that leaf blower is a decade out of warranty. Skip to main content. To begin with the latter: ECC83s (12AX7) are coded "1574". both have the same 4g2 date codes from july 1952 . Copy Comment URL; Report Comment seller: loli0903 ️ (616) 99. Cage Code 1DTD9 was last updated on 2019-09-03 with the following company details. *each tube came with 3 factory stickers (click Larger Photo). description ; 6sn7gt brimar. Woden transformers with Jan. I use Brimar 12SN7 as my number 1 pick. 6SL7GTY CV1985 ECC35 Brimar Valve Tube Brown Base NOS (P37) quantity. Structure's features: Grey plate, low ring getter, black base. The date code follows the ‘WWYY’ format, with the first two numbers representing the week of manufacture, and the last two numbers indicating the Hey there, let me introduce you to the Brimar CV717 5R4GY Rectifier Tube – a real vintage gem from the 1950s. All the UK military spec valves that were used by the War Department all had a CV (Common Valve) number and have always had a strange code inked on to the glass usually in the form of KB followed by a slash ( / ) followed by one or two letters i. Get 'em now! Matched pairs, when available, just $250. I never thought I’d say this, but no response would’ve been better than that. are well documented on the web (for example, see Philips Code List), but there is little information for the codes used by Brimar and other Thorn There is very little information available on how to read Brimar tube codes, but in general, they are one of the easiest to decipher. May 2, 2020. I have only one original data source for these devices, the 'MAZDA Semiconductors DATA BOOKLET 1966' shown. Thorn-AEI (Brimar), Rochester Plant Date Etched Date Codes. Date code example: 1402 About BRIMAR SERVICES. The print has Hallowell & Co. , Inc. The letter represents the year, found on the chart below, and Brimar Subject: FP-2019-09-28 Created Date: 9/28/2019 3:42:10 PM Brimar bought in some Russian valves to cover production gaps after the Kent operations were closed down. (fully tested) pair of NOS Brimar CV1988/6SN7GT, which are now surplus to requirements: These are amongst the finest sounding premium 6SN7 tubes Single Tube MINT NOS, 1969 Brimar AKA Ediswan Military Production CV2492 with Gold Pins. There are some easy ways to find out when your vintage Fender was manufactured. Flying Leads Plug&Play CV4034 - Premium 12AU7 ECC82 E82CC ECC802S 5814 6189 6680 CV491 CV4003 CV4113 CV4122 F6067 B749 M8136 13D5 7316 type. The DOT code is a sequence of letters and numbers embossed on the sidewall of your tyre. This program follows the conventions defined in EIA-476-A (Source and Date Code Marking) and EIA-476-B (Date Code Marking) and follows the MIL-STD STC Date Codes are faint and painted on instead of etching in Brimar flying lead type, and may not be visible on all tubes. Details; Discussions; Posts; This discussion; Message User; 6,704 posts. 6l6gb, sylvania, matched pair, green base print, back 3 rib plate, l5m, h5m date codes, 1957 manufacture. 1960s UK factory date codes. Burndept. Location: Wrexham, North Wales, UK. Featuring bold text and PPE graphics, it effectively communicates the job site dress code and the requirement for personal protective equipment (PPE). Long story short, I'm torn between spending a decent chunk of change on Brimar CV4003 from Upscale Audio or a big wad of cash on Mullard's from Vintage Tube Services. The API is the American Petroleum Institute and it has a voluntary certification program for DEF. For example, if the DOT code ends with “214,” it means the tire was built during the 21st week of 1994. STC production, made in England. NEW, UNUSED AND BOXED. Joined 2007. Same type as sold in Pulse Tube Store, usually runs $ 260/pair. This tube is absolutely new and in immaculate condition. 6AU6WC JAN SYLVANIA NOS BOXED VALVE TUBE CV4033 Flying Lead is a Premium Grade, High Reliability Long Life version of CV4024/ECC81/12AT7 valves (Click here) - CV4033 premium grade version of the 1960s Black Plate CV4024/6060 is one of the best from Brimar in the ECC81 types. GB. 10 in stock. The Brimar valve company at Foots Cray in Sidcup - a few miles from Erith and Dartford, Date codes of the EL34s are B4L3 (one), B4L4 (three) = Blackburn Factory, 1964, third week and last week of December 1964. pdf) or view presentation slides online. ECC82s (12AU7) are coded "161/2161", "571/1571" or "987/3987". The DOT Date Code, imprinted on every tire’s sidewall, serves as a clear testament to transparency and safety standards in the tire industry. Original die cast round footswitch. 99 shipping. ) MMDDYY (Standard US Format) Standard US date format on fresh pasta. Home. Samples: 01/01/11, 0101011, 01jan11, = January 1st, 2011 Julian Code Date A date code, or expiration date can be found on just about any package of DEF. The Mullard EF86. 262B: WE: OB: NOS, (2)6139(1961), mesh plate, (pair) 22,000 : 0 : 310A: WE: OB: NOS, (2)213(1952), (0)218 Thanks for posting the date code locations for three tools. 00: Military date code HL KB/FB. Packed in generic white boxes from bulk. I too prefer the Brimar over the Mullard. Originally donated to us some years ago by the British Vintage Wireless and Television Museum, it is the third of our RF generators to be overhauled by TonyK. MULLARD, GENALEX, BRIMAR, and other British made NOS: Made for various Philips brands like RTC and Dario/Miniwatt, all have the Mazda France "F" date code. For example Here are examples of Vintage date codes in different formats and fonts but they are all AUTHENTIC. Etched Date Codes are faint and can be read with good light and magnifying glass. Manufacturer: Mullard. Mullard EL84 output valves, Mullard GZ34 rectifier, preamplifier valves are Mullard and Brimar. I4 CODES 156565748629 Title: 14S7 15A2 15D1 15D2 19AQ5 Author: Brimar Subject: DPo-FP-2006-04-13 Created Date: 4/13/2006 9:38:37 PM Expiration date codes can be in one of two formats: Julian or Gregorian. com, including how to read Phillips tube codes (see the yellow box entitled "Euro Tube Codes"), which will tell you where and when your tube was made, whatever it is labelled. CV4033 Flying Lead is a Prem Grade, High Rel Long Life ver of CV4024/ECC81/12AT7. The third and fourth digits of the DOT code indicate the year of manufacture. The codes are made up of two (2) letters. Acting as a tire’s “birth certificate,” it offers consumers invaluable information about a tire’s age, ensuring they can make informed decisions regarding tire purchases, maintenance, and replacements. Made in England Tube Type / Number: 6L6G/CV1947 Actual Brand*: Brimar Printed Brand: Brimar Quantity: 4 Pieces-Matched Quad Matching Date Codes? Yes Plate Construction: Black Getter Construction: Bottom [] Country of Manufacture: England Visible Date Codes: JD Lettering Condition: 100 Percent Number of Mica Spacers: 2 Mica Spacer Shape: Saw Glass Coating: Black Smoked That's a tube for you maybe BRIMAR VALVE TYPE & DATE CODES - HOW TO INTERPRET THEM Brimar codes come in two Brimar preamp valves, date codes currently unknown. Brimar codes 28. RCA tube date codes. 4%, location: inverkeithing, gb, ships to: worldwide, item: 225476935239 very rare pair of brimar cv1988 6sn7gty same date codes 1952. Printing is fragile as expected on tubes from that era. TESLA codes 27. STC Rochester Plant Date Codes. Britain" marking that indicates English Mullard manufacture. Printing from that era is fragile. Brimar-branded Mullard EL84s, date code "B3?2" - second week of some month in 1963. Thread starter adaug; Start date Apr 8, 2023; adaug Awaiting Updated Member Status. R. Here's the order on newer items: 2 numbers 2 letters 4 numbers On vintage Dior handbags, the order is slightly different. various dress-up materials that players could obtain by pressing the code redemption mullard magic mullard tubes mullard valves vintage radio military radio leak quad radford u52 gz34 kt66 px4 ws19 mcr1 spy set r1155 CAGE CODE 1DTD9. The tube has black plates with a single connected joint, very large halo, copper rods, welded tabs to support plates, etc. Another reason for codes not working may be a simple typo. What I was really after were Brimar 13D5 (lots on eBay from India!). Proudly powered by WordPress Up for sale 1pc. This is determined by the Most batteries have a date code stamped on them that can help you determine when they were manufactured. 8 / 64. The first two characters stand for plant code, which the manufacturer assigns the code for. Look for a tube with a flat top, Brimar has one of the flattest The tubes below are being sold for $200/pair: Brimar 6SN7GT Now, a pair of actual UK made Brimar 6SN7GT/CV1988's regularly sell for $200/pair, and Menu. Skip to content About Us Contact Us My Account Prem Tubes (MULLARD-BRIMAR-GENALEX) F/Leads Plug&Play. A table can Game Codes are redeemable exclusive items that you can earn by completing events or finding them on an official Dress to Impress Influencer’s page. The following chart shows what month the DDD part of a Julian date represents in perpetual calendar years. Lightly used. Category: Valves Tags: 6SL7GTY, Brimar, Brown base Tubes: our philosophy . Mullard 10M Master Series ECC83: These Brand New, Rare MINT NOS NIB 1950s Brimar Long Black Plate 12AX7 Square Getter tubes. Product Code: 1210. why same tubes have different prices. This means a date code of “529” could mean the tire was manufactured in December 1999, or December 1989 – or even (up)date: item: size; 2006-02-26 Brimar Radio Valve and Teletube Manual No. London Guarantee Stamp. Date code: Both STC Rochester Plant Date Codes are faint and painted on instead of etching in Brimar flying lead type, and may not be visible on all tubes. very rare pair of brimar cv1988 6sn7gty . Each day of the 365-day year is assigned a numerical value, where “001” is read as January 1 and “365” is read as December 31. Thomas Organ Vox dealers. Other sellers on Amazon . These rare early 6DJ8 tubes have the old Brimar logo, some with the old BVA logo. For construction details, look to the section on Bad Boys in post #3 and compare against that for 'normal' Syl 6SN7GTs. From 1986 to 2011 the code consisted of 3 letters. The API offers (sells) manufacturers rights the API mark. ” The tire date code is a four-digit number indicating the week and year the tire was manufactured. 10 reviews. For example, if the DOT code reads 3421 in the last 4 digits, then the tire was made in the 35th week of 2021. 1965 - US valve equivalents. Pingback: Brimar 6067 Black Plates - Tube Maze. Stykel. The listing follows the convention of, first letter: year; second letter: month and the table below will act as a useful aide memoir instead of using fingers and toes to do the calculation and getting it wrong - as I occasionally do to the gleeful Tested on a Hickok TV7 were 50 is low. Stock Details: Tubes as Shown Available Same Brimar etched code 5F6/565 on all tubes. " I'm thinking they did. us. From 1955 a six digit number was used, the last two digits corresponding to the year. The ECC83 (Brimar) CV4033 premium grade version of the 1960s Black Plate CV4024/6060 is one of the best from Brimar in the ECC81 types. Tubes are packed in white boxes from bulk box. The first two digits of the DOT code indicate the production week of the year (from 1 to 52). (DR0128 = Made in France on the 2nd week of 2018)Louis Vuitton Artsy bag: The date code is located on the fabric of the lining inside one of the wall Description. category: valves. Excellent tube, especially for Join Date: Jan 2008. Prem Tubes (MULLARD-BRIMAR-GENALEX) F/Leads Plug&Play. These tubes beat any newly made ECC82/12AU7 hands down. Let’s dive into the anatomy of a Michelin tire date code, unravel its components, and see how it all comes together: Structure of a Michelin Tire Date Code This “Date Code” could be found straddling the air valve on NFL footballs. 3 digits model code Complete code: 2H9 &n I am not going to get into the perennial discussion of the sonic properties of the yellow print valves over the stock boring white print ones but instead discuss A DIFFERENT advantage the yellow has over the prosaic white. Super high amount watching. Brand New, MINT NOS NIB Rare 1957-58 BRIMAR CV4033 3-MICA Black Plate Halo GT, Copper Grid Post Military tubes. New & Used (4) from $22. Qty: Email Brimar CV4033 (ECC81 type), matched pair: $ 165/pair. Weight: 0. These formats serve as a way for manufacturers to communicate important information about their products. These are Mullard valves (mostly Just tried out a quad of brimar 13D5 long plates with a big ring getter, date codes say 1960. Whether it is an open date, such as a calendar date, or a closed date, such as a code of numbers and letters, you can use these date codes to figure out the peak quality date of your food item. Year of production: 1960's. Brand: Brimar Type: ECC807 Manufacturer and factory: Brimar England. The first one is for normal calendar years, and the second one is for leap years. Interpret a 3-digit code as the date in a year that a product was made. Britain - 1960s - Very Rare. The date code has since become an invaluable tool for Zippo collectors. Brimar CV4034/12AU7/ECC82. In this case it is 1999. 25kg. 0 sold, 1 available. A hand written individual serial number on top, and a printed sticker with numbers R811451 PM25525-1 on the side. Most tubes carry Brimar date codes from the 1960ies which are known as fantastic performers. If you want to get more Dress To Impress (DTI) codes, bookmark our page and check in regularly for updates. Private-brand tubes generally used a shippingdate code of two or three characters. The Weekly Date Codes can be found below. EIA RETMA Chassis Wiring Color Code 26. These British made black plate 12AT7's are uncommon these days. (Example 1986 1st quarter would be AAA) Beginning in 2012 HLC increased the year code to 4 letters. Tube Type / Number: 6L6G/CV1947 Actual Brand*: Brimar Printed Brand: Brimar Quantity: 4 Pieces-Matched Quad Matching Date Codes? Yes Plate Construction: Black Getter Construction: Bottom [] Country of Manufacture: England Visible cv1985, brimar, footscray, mil spec 6sl7gt, matched pair, brown micanol base, same white military cartouche with date code for may 1960, ecc35, vt-229, 6sl7 Tire dot code 7-12 Character TIN. Tubes are Brand New. MATCHED PAIR (2 TUBES) MATCHING 7152 DATE CODES. myweb. The reverse cover is printed THORN . The prices are fair and I'm more than 3811 - The DOT code is a four-digit number, 3811 in this case. 6. otherwise), dating around 1949. The 6067 tubes have a bit more gain (mu: 20) than 12au7, but they are completely The final piece of the restoration plan for our Ediswan RF Induction Heater was completed recently – a new cabinet, graphics and paint job. In the world of expiration date codes, there are a few common formats that you may come across. Great sounding 6SN7GT triodes. e. This is a very rare amplifier both in terms of its vintage (year of production), and its What is the current Julian date? Today's Gregorian date is and Julian Calendar today is . STC also made tubes for the UK Military, under the CV tube code designation, that were not branded Brimar, although they are sometimes The EIA program for assignment of Date Codes provides a standardized method to stamp or mark any or all products to identify the year and week of production. The following is an example of interpreting the date for the code number 99011556: The first two digits (99) denote the year of manufacture. Access codes and supplements are not guaranteed with used items. Primus Dating Chart - From 1911 Primus paraffin stoves are stamped with a letter code. Headphones 19% z 1938 T 1940 R 1942 S 1944 H 1937 U 1939 x 1941 Y 1943 K 1945 V On Government tubes, the "E" was printed separately, typically below the date code. In this code, the first 2 numbers stand for the year, while the last 3 represent the day of the year Pingback: Brimar Tubes Date Codes - Tube Maze. The ECC82 (Brimar) 1960s. The first part, of format number-letter-number is the date code where the first number signifies production week of month, the following letter signifies the Brimar-made valves have a date code followed by a "part" code. Around 1982, Louis Vuitton started using 3 or 4 digit codes to represent the year and the month in which the item was made. B= XXX9 (1969) C= XXX0 (1970) D= XXX1 Below is the date code chart for the production of Fiesta®. Spec 6X4/EZ90 tube. If you're passionate about Louis Vuitton vintage handbags, checking the date codes is essential whenever you add a new luxury bag to your collection. 82,151,064 bytes 2017-09-11 Design Data Valves Vol2 European Types. 6sn7gt cv1988 kb/fe brimar stc vintage 'black beauty' nos valve tube date code 1971 (lc76) quantity. The following four digits represent the date of production. Livingston, Montana 59047 USA Tel: 406 222-4770 Fax: 406 222-4792 Email: morris@hallowellco. The most common reason is code expiration. Oblong bar getter. Couple of variations on the label font as shown in the picture. If you're not yet familiar with Louis Vuitton date codes, you've come to the right place for all the information you need. In most Roblox fruit games, codes tend to expire very quickly. Related products. Company reference manual from Brimar for their vacuum tubes Defining date codes Open dating “Sell-By” dates tell a store how long to display a product for sale. I found the Brimar to have the more liquid midrange and -- can't believe I'm about to write this about a Mullard tube -- I found the Mullard to be a bit tipped up in comparison. Tubes are stamped with Technical Trading Co. First, to get a general idea,there’s the appearance/style of the amp. Lightly used, like new Rare 1960s BRIMAR 13D9 Industrial grade with Black Plate and Copper Grid Posts with BVA logo. Some of our eagle eyed readers will have noticed that the Yellow Print Old Shield Mullard valves have underneath the shield typically the 2 X Brimar ECC83 12AX7 O Getters Same Date Code 1955 Valve Tube (KM75) UnBiased (3075) Private Registered as private seller, Estimated delivery dates - opens in a new window or tab reflect seller's dispatch time, origin postcode, destination postcode and time of order receipt, I know many of my readers find my CV numbers and Factory Codes blog post useful but I am frequently asked for a date code listing. These T(trust)- Series tubes have etched Brimar England date codes. For some 1980s and for all bags 1987-1989, the date code will be 3 or 4 numbers followed by 2 letters. Brand New MINT NOS NIB, Late 1960s Brimar AKA Ediswan Military Production CV5358. Prior to 1945 date codes were in Roman numerals and included the month and the last two digits of the year, so January 1922 would be rendered IXXII. This system provides an easy way to determine the age of your small engine. In military boxes. USA black plate 12AX7s sound much different than USA gray plates, and can be compared to some premium European ECC83s. Joe . At this time a full review of the hazardous area installation was undertaken, and it was apparent that the documentation and maintenance was out of date with the current code. How To Read Tire Date Codes. 9 - 64. 1964. The very strong tubes have balanced systems and have perfect tube-tube match. Whilst this may not be everybody’s choice, our Etched Brimar Date Codes. These little known 12AT7's are surprisingly good. Common Date Code Formats. Tested and matched on Top of the Line Calibrated Hickok 580 Lab Grade Tester recently calibrated by late Chris Haedt. as well as some emergency manufacturing to help various war efforts. Full set of Woden transformers bearing “LT” date codes for December 1962. To read a date code printed on perishable food, look for a date with the words “use by” or “sell by” before it. CV1988 KB/FE MILITARY SPEC. The letters and digits are separated by a space and the Date code: 3K5/571 (3 = Week 3 of the production month, K = November, 5 = 1955, 571 = Pre-1960 ECC82 production) Professional Tube Testing This set was tested and certified by RoeTest V11 Professional Tube Testing System with the following result: Beretta has been using date codes to identify the manufacturing year of their shotguns since 1945, initially with roman numerals and then switching to two letters from 1975 onwards (e. Grey tubular anodes. Various dated acceptance stamps on the boxes are NOT the date codes and may be of later date. Checked codes in this batch are from 1961. The remainder of the serial is a sequential production number, seven digits in length before December 2007 (DM), and eight [] Perfect matched pair of vintage Brimar 6DJ8(ECC88) audio tubes - Made in Gt. It may be that 8D3 was regarded as being an 'old-fashioned' code whereas 6AM6 projected a more modern Across many games of Roblox there are codes that can be redeemed to get you a jump start at growing your character or furthering your progress! We've been compiling these for many different games, and have put all of those games in a convenient to use list! We've got up-to-date Roblox Game Codes for Brimar ECC81 12AT7 - Rare 1950s MINT NOS Black Plate Square Getter RTC Label Same Date 5F6/565 - (M. STC Rochester Plant Date Codes are faint and painted on instead of etching in some of the earlier Brimar flying lead type, and may not be visible on all tubes. 0 new watchers per day, 3 days for sale on eBay. STC Footscray or Rochester plant date codes. In excellent condition with stickers intact. Grey ribbed anodes. That means that instead of saying 12th Feb 2024, the Julian calendar will count the day as 24043! known as the Julian date or Julian day. T(trust)- Series Yellow Sticker with etched Brimar England date codes. 1950s vintage, larger, black wing plates, white label, and the yellow T decal with the Brimar name on the back of the tube. Vox AC30/4. Site Supporter but the factory was shared between RCA, Philips, and Brimar. Date codes have: First number – week of production: Second letter – month of production: Third number – year of production: Forth number – tube type: 3 digit code shows pre-1960 production, 4 digit code Brimar codes come in two parts separated by a forward slash "/". Labels are fragile as expected from tubes from that era. GREY PLATE, RING GETTER. It’s commonly used on eggs, but also appears on canned goods. Minimum 65% = 1400 mmhos for 12AU7 on this tester. They are found in the top left and right corners on the underside of razor guards, both 3 peice and 1 piece models. This tube is a piece of history with its ribbed black plates and dual rectangular bottom getter, and it's got that authentic Brimar date code, 4E6, which places it in 1956. 7147 date code Stock Details: Tubes as Shown Available For Matched Pairs or Quads: Select 2 For a Matched Pair Quantity in Stock: (Out of Stock) Product Code: 2016MA Tube Type / Number: 6922 [E88C ECC88 6DJ8]Actual Brand*: Brimar? Mullard (no EIA codes)Printed Brand: DuMontQuantity: 1 Piece-SingleMatching Date Codes? Plate Construction: Gray/Gray Center ShieldGetter Construction: Top OCountry of Manufacture: EnglandVisible Date Codes: ERP/60-22/171ALettering As Mullard made 8600 different types of valve, I am not going to try and list all of the Engineering Codes but a poll of t'Interweb should find a list somewhere The lower line is the date code and a handy decade split can be made from the number of characters this line possess: - If its a 3 character code, the valve was produced pre 1960 If its Brimar etched date codes on all tubes. Another hand written serial number on the side and text PM25525-1. Tubes come with British governmental print. How to get more Dress To Impress (DTI) codes. STC Date Codes are faint and painted on instead of etching in Brimar flying lead type, and may not be visible on all tubes. Find many great new & used options and get the best deals for Brimar 12AU7/ ECC82 Vintage Tube at the best online prices at eBay! Free shipping for many products! I haven't heard the Mullard 12au7, but I have heard both the Mullard cv4003 and the Brimar cv4003. Military boxed. 00 CV1985, BRIMAR, MIL SPEC 6SL7GT, , FAT BLACK BASE, ORANGE PRINT, ECC35, VT-229, FOOTSCRAY , MARCH 1952 PRODUCTION 6SL7 mullard magic mullard tubes mullard valves vintage radio military radio leak quad radford u52 gz34 kt66 px4 ws19 mcr1 spy set r1155 "See the pretty label. ST. STC Rochester Plant Date Codes are faint and painted on instead of etching in 13D9, and may not be visible on all tubes. Test results: V1 – A1: 2. Date Established: 1998-04-20: Updated: 2019-09-03: CAGE Code Expiration: 2024-09-03: SAM Registry Expiration: 2020-08-20: POC: JASON [Brimar] on Amazon. These tubes were sourced from Thorn/EMI and relabeled/re-boxed as CV492 by Mullard. made in england. Although the date codes are fainted on both tubes, the near pristine cosmetic condition on this pair is indeed hard to find among vintage tubes: at least 90% of the paint and lettering are well preserved. If you know where I can find any, please Food expiration date codes aren’t actually expiration dates but more like quality assurance dates. If your tires were made before the year 2000, the date code will be only 3 digits – the first two digits again listing the week of the year, and the last digit being the last digit of the year of the tire’s manufacture. why same tubes have different prices . In white military boxes. How do you read a battery date code? The battery date code is typically a 2-digit code that represents the year and a letter that represents the month. In Europe, the principal method of numbering vacuum tubes ("thermionic valves") was the nomenclature used by the Philips company and its subsidiaries Mullard in the UK, Valvo (de, 6SN7GT 6SN7 6SN7GTA 6SN7GTB B65 6F8G VT231 BL63 VR102 6H8C ECC33 12SN7GT 12SN7GTA, BRIMAR, Mullard, Pre Amps Tubes, RCA, Tube By Brand GZ34 Brimar Mullard UPDATE: One astute customer has informed me that GE offered 6681 tubes with the typical top seams, date codes, and "Gt. The appearance of the word "Zippo" in the bottom stamp provides another clue to dating. wixp uqlqo tncbj vxz oqmzz rumcgq tsmep cvkg hxmw kbiyqvl