Raytheon tube date codes

Author: btwp

August undefined, 2024

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 14, 2024 · 188-5 is the code for the Owensboro, Kentucky plant that cranked out millions of tubes up until the early 1990s when audio tube production came to a halt. The gray and …

EIA codes to ID USA tubes - Tube Maze

WebThe 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. 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 … chiroprators in makati

Raytheon Technologies - Wikipedia

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 … 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 … WebCK571AX 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 … chiroprators in syosset ny

I need help deciphering code date on Raytheon (Mullard) …

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 tube (used). It has the hole in the center locating boss and has the following code etched; f32 B8G1. It also has serrated plates and has black base. Thanks, Huck WebMay 15, 2005 · I have here Sylvania 6SN7GT from 1945 identical to the VT-231 numbered tube, and Raytheon 6SN7GT 1944 identical to the 1944 VT-231. Also RCA's, Tungsols, and so on. ... There will be a three digit date code on the base of the tube, and the first number will be "2"” –Hirsch, in personal correspondence with author chiropraticien waterlooWeb$20.00 to $180.53 (4 offers) - Buy RAYTHEON 6J5WGT Eq Black Rod Plate 6J5GT . Brand: Raytheon . Type: Nos Tube . Country Of Manufacture: United States. Vintage Tubes & … chiropraxis 179grad

"WebThe Raytheon (EIA) code number is “280″. Here is an example: In this photo, we see three Raytheon-manufactured 6SN7GT tubes featuring Black Plates, square getters, clear tops, and dual plate support rods. You can see the 280 EIA code on each tube base, and the … " - Raytheon tube date codes

Raytheon tube date codes

Identifying RAYTHEON tubes - tubesound.com

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 … WebTrue NOS NIB Raytheon USA 6S4 Grey Plate Top Horsehoe Get Vacuum Tube. Raytheon. $3.95 ... RaytheonPrinted Brand: RaytheonQuantity: 2 Pieces-Matched PairMatching Date …

Did you know?

Web"One highly desirable US Made, Raytheon 12AX7A tube sporting the CMI logo, halo getter, grey plates, copper rods. “ARBL” in light white font near the top of the tube. Manufacture/date code is P280C 64-33 (The “280” = Raytheon manufacturer code), so the tube was made in ’64 during heyday of US tube manufacturing. 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).

WebThe 12AX7's are obviously not "made in Holland" as stated on them. Amperex Bugle Boys were not made with the 45 degree halo getters either, I am almost certain. As Brock (H9) … Web5 Vintage Raytheon 35A5 / CV1753 Loctal Beam Power Tube Power Output Tube Valve - BangyBang Tubes. $105 $21 Off. $84. Brand New. 14-Day Return Policy. Add to Cart. 5 Vintage 15FM7 / 13FM7 Raytheon Double Triode Compactron Radio TV Tube Valve - BangyBang Tubes. $79.99 20% Off. $63.99.

WebProduct information "6J5WGT JAN-CRP Raytheon/USA". JAN-CRP-6J5WGT Raytheon/USA NOS-NIB. metal base version, black ribbed plate, D-Getter. date codes from 1950s. CRP … Web0 Cold cathode (e.g. voltage regulator tube). 1 0.1 - 2.0 2 2.1 - 2.9 3 3.0 - 3.9 n n.0 - n.9 Letter or letters: sequence code One or two letters to indicate the sequence code. When the single character codes were used up, double …

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 …

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 ... graphic translationsWebMatching date codes. Matching internal and external construction. Rectangular getters. Dual support rods. Amplitrex tested for grid voltage and transconductance at 250v and 60mA. Test as new and matched: Tube 1: Grid: - 44.5v; GM: 5.55 mA/v Tube 2: Grid: - 41.6v; GM: 5.51 mA/v Buyer to pay shipping and PP fees. Cheers and thanks for looking. chiropraxis affolternWebFind 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 ... chiropraxis aachen graphic transportation bramptonWebMar 2, 2014 · The first 3 digits on a pot, or the first 2, 3 or 4 digits on a speaker are the source or manufacturer code . The remaining 3 or 4 digits are the date code. In 3 digit dates code, the 1st digit is the last digit of the year. On 4 digits date codes, the 1st and 2nd digits are the last two digits of the year. chiropraxie networkWebApr 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 ... graphic transformationWebNOS 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 … chiropraxis am kurpark bad nenndorf