Raytheon tube date codes

WebFind out when your Telefunken tube was made: Telefunken tube date codes; Read ... (8Y1 series). The yellow print on the glass has the broadcast quality Mullard 10M logo and the Blackburn code is etched in the glass. Tube tests as new with low noise. Raytheon 6SN7GTB - side getter, matched pair. Price: $97.00. The 1956 Raytheon 6SN7GTB tubes in ... WebRaytheon: 1937 Receiving Tubes (PDF, 7.6MkB) - Courtesy of John Atwood. 1938 "Handbook of Amateur Tube Uses" (6.6MB PDF file) - Data on the Raytheon "RK-series" of transmitting tubes (as well as a few others), and …

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Web19% 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. Private-brand tubes generally used a shippingdate code of two or three characters. An initial letter (A through L, including I) gives month, followed by the last digit of year. Bulk-packed (OEM) tubes also … WebJul 23, 2008 · Usually single digit date codes are from the 1940's, but have on occasion shown up in later decades, even up to the 1970's. If one has a general idea of the age of … city approved plans https://timelessportraits.net

Guide to NOS and Vintage Audio Tubes - The Amp Garage

WebJul 3, 2014 · The second character indicates the year of manufacture. For the date code shown in the picture, the ‘9’ indicates either 1969 or 1979 depending on the change code. … WebFeb 27, 2014 · For the most European tubes made after 1955 date codes are located on the bottom of a sidewall of a tube (not always the case) In this case, it’s B0D (this is for Mullard, Blackburn – 1960 – April) The code is broken down into 3 or 4 characters. 1) Factory code, 2) Year of Manufacturing, 3) Month, 4) Week (this is usually on tubes ... WebMay 11, 2013 · ECC83 is the European designation for the 12AX7 tube -- (it is the same exact tube). These tubes include those produced by Mullard, Amperex, Siemens, Telefunken, Tungsram, RFT, Ei, Mazda, Lorenz, Philips and others. European ECC83s are generally sought after for their warm sound (with exceptions -- Telefunken, for example). city approach city road london

My new (NOS) General Electric 6SN7GTB tubes. Are they …

Category:Deciphering European tube date codes - Tube Maze

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Raytheon tube date codes

Raytheon Products - VIVA TUBES

http://www.tubebooks.org/tube_data.htm WebThe Raytheon Company was founded in 1922 in Cambridge, Massachusetts, by Laurence K. Marshall, Vannevar Bush, and Charles G. Smith as the American Appliance Company. Its focus, which was originally on new refrigeration technology, soon shifted to electronics.The company's first product was a gaseous rectifier that was based on Charles Smith's earlier …

Raytheon tube date codes

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WebNOS RAYTHEON 6DJ8 ECC88 MATCHED PAIR TUBES Made in USA IDENTICAL DATE CODES 1963. $115.50. Was: $165.00. Free shipping. 10 watching. ... Rare RAYTHEON CK 5751 12AX7 Round Gretter Date 65-19 NOS. $69.00. 0 bids. $6.10 shipping. Ending Jan 10 at 11:44AM PST 4d 17h. ... RAYTHEON 6SN7 GTB TUBE CHROME SIDED TOUGH DOG 2 … WebApr 5, 2008 · Hi: Can someone direct me to a link, or supply me with some information regarding the production code date on my newly aquired Raytheon(Mullard) 5AR4/GZ34 …

WebVintage Tube Raytheon 6EM5 old stock parts *tested* NOS in box ad vertisement by deckvintage. Ad vertisement from shop deckvintage. ... red base - black plates - support … http://www.audiotubes.com/audtube.htm

WebSome of the oldest 12AT7 we have in stock. Amazing fidelity and quality, made if the Golden Era of tube manufacturing in the USA. 12AT7 / ECC81 / CV4024 / CV455 / A2900 / B739 / … Web5NR: last quarter of 1945, replacement (I don't know what the reversed letter and number mean) KenRad A5: January 1945. E,D, and H in the older Sylvania code would be May, …

WebApr 30, 2024 · 4 = 1954, 1964. 5 = 1955, 1965. 6 = 1956, 1966. 7 = 1957, 1967. 8 = 1958, 1968. 9 = 1959, 1969. 10 = 1960, 1970. Moving onto the second part of the code, this is the valve type designator and can be a three or four digit number with three digit signifying pre - 1960 production and four digit signifying post - 1960 production. Interestingly, the ...

Web188 is General Electric. 5 is the plant code (in this case, Owensboro, Kentucky). 69 32 is 1969, 32nd week. And another is like this: 322 6104-1 322 is Tungsol, 6104 is 1961, 4th … dicks running shoes trialWebCK571AX 5886 Vacuum Tube Raytheon NOS 5 Each Electrometer Pentode Tubes. $23.00 New. 3 Raytheon 6B4G Vacuum Tubes NOS & Tested. ... Lot of 11 Raytheon Uniline … city apps duluthWebDec 14, 2012 · DATE CODES FOR PIIILCO TUBE§ The code is the full version of the EM code: the last two digits of the year plus the. week code. The week code is restricted to even numbers only, thus indicating the first. or last half of the relevant month. The year and week are separated by a dash, indicating. the tube was sold on an "allowance" (OEM) basis. dicks sales and service somersetWeb19% 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. Private-brand tubes … city apps duluth fireWebthat says 'Gt. Britain' on the tube can actually be an Ei, RFT or Amperex. Same goes for other American or European tubes. It gets even more confusing when you find European … dicks rv wiWebTrue NOS NIB Raytheon USA 6S4 Grey Plate Top Horsehoe Get Vacuum Tube. Raytheon. $3.95 ... RaytheonPrinted Brand: RaytheonQuantity: 2 Pieces-Matched PairMatching Date … dicks running shoe clearanceWebThe GE tube on the left of the photo is without any doubt Sylvania-manufactured, even though the tube was silkscreened “188-5” and GE boxed and branded. This is a situation where experience provides the real answer, and the 188 oem code was misleading. Another example would be Amperex “111” marked tubes. dicks salvage yard findlay ohio