The Reference 6SN7 Thread
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Paladin79
Previously MOT: Cables For Less
Well one of us is bound to lol.
bcowen
Headphoneus Supremus
I'll save you the trouble -- it's Bill's fault. It's always Bill's fault.
You sound like my boss.
attmci
Headphoneus Supremus
I do.I have one with a support rod as well, but it's not the OG Frankie as described by @bcowen . He gave me one w/ a support rod for free -- does anyone here really believe that Bill would offer up a Frankie for FREE!!??
The catch is he want you to claim his OG F beats the B65 etc.
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JKDJedi
Headphoneus Supremus
Don't know much about Brimar... but....made in Japan!? 
JKDJedi
Headphoneus Supremus
Someone suggested Brimar outsourced them to Japan...
Ripper2860
Headphoneus Supremus
I'm a huge fan of Brimar - made in UK Brimar, that is.
cddc
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Don't know much about Brimar... but....made in Japan!?
Brimar is a made in UK tube, and has round plates.
This one is a fake one, it has flat plates. It is very likely a made in Japan tube, rebranded as Brimar.
JKDJedi
Headphoneus Supremus
Kinda had the same idea about it . Just wanted some back up before I go in and straighten some folks out. .
cddc
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Kinda had the same idea about it . Just wanted some back up before I go in and straighten some folks out. .
Aren't you in for a 3 week remission now after the holy grail GEC 6AS7G purchase today? ...
JKDJedi
Headphoneus Supremus
Aren't you in for a 3 week remission now after the holy grail GEC 6AS7G purchase today? ...
I'm just helping folks out, not buying any Brimars....not yet anyways 
JKDJedi
Headphoneus Supremus
So there's reference out there that any tube with the stop sign logo with 6SN7GT in it, Sylvania tubes for example, are most likely made by RCA. 0.o What the Mercedes!? #blasphemy
https://www.tubemuseum.org/SearchRe...is is why we see,at some time relabeled tubes!
MEANINGLESS CODES by TUBE REMARKETERS:
"Both Tung-Sol and RCA utilized the "Stop-Sign" logo [5751] in brackets. The "hole" in the top mica identifies these USA made tubes from the TUNG-SOL factory in Newark, New Jersey, USA in the 1950's.
THE UNITED-ELECTRIC RELABEL CODE 88-37 IS MEANINGLESS AS THEY SIMPLY RELABELED NEW OLD STOCK TUBES FROM TUNG-SOL. RCA, SYLVANIA, AND OTHERS. NO ONE MADE D-GETTER OR SQUARE-GETTER TUBES IN 1988! AND UNITED-ELECTRONICS WAS OUT OF BUSINESS IN 1988! SO 88-37 WAS UNITED-ELECTRONICS INTERNAL NUMBERING SYSTEM AND DID NOT SIGNIFY ANY MANUFACTURING DATE.
Especially, during the 1950's war effort, it was a common practice for USA factories to source tubes from each other and re-label them. When a government requirement for CV4017 tube specification came in a Request For Proposal (RFP) to the 4 major USA tube factories they all worked together to source from one another to fill the orders. This is why we see so many tubes made by Tung-Sol labeled as RCA, RCA made tubes labeled Sylvania, Sylvania made tubes labeled GE ... and so on, Sylvania, RCA, Tung-Sol and everyone else at some time relabeled tubes! This is why we have to LOOK AT THE ORIGINAL FACTORY CODES IF PRESENT (NOT THE UNITED ELECTRONICS RELABEL CODE),, and identify the real tube manufacturer by codes, inner construction, shape of the tip, and shape of the getter ring to determine the real origin of the tubes.
UNITED (United Electrics Company, Newark, N.J., USA) was a company that simply re-labeled Tung-Sol, RCA, Sylvania, and GE USA made tubes for resale".
https://www.tubemuseum.org/SearchRe...is is why we see,at some time relabeled tubes!
MEANINGLESS CODES by TUBE REMARKETERS:
"Both Tung-Sol and RCA utilized the "Stop-Sign" logo [5751] in brackets. The "hole" in the top mica identifies these USA made tubes from the TUNG-SOL factory in Newark, New Jersey, USA in the 1950's.
THE UNITED-ELECTRIC RELABEL CODE 88-37 IS MEANINGLESS AS THEY SIMPLY RELABELED NEW OLD STOCK TUBES FROM TUNG-SOL. RCA, SYLVANIA, AND OTHERS. NO ONE MADE D-GETTER OR SQUARE-GETTER TUBES IN 1988! AND UNITED-ELECTRONICS WAS OUT OF BUSINESS IN 1988! SO 88-37 WAS UNITED-ELECTRONICS INTERNAL NUMBERING SYSTEM AND DID NOT SIGNIFY ANY MANUFACTURING DATE.
Especially, during the 1950's war effort, it was a common practice for USA factories to source tubes from each other and re-label them. When a government requirement for CV4017 tube specification came in a Request For Proposal (RFP) to the 4 major USA tube factories they all worked together to source from one another to fill the orders. This is why we see so many tubes made by Tung-Sol labeled as RCA, RCA made tubes labeled Sylvania, Sylvania made tubes labeled GE ... and so on, Sylvania, RCA, Tung-Sol and everyone else at some time relabeled tubes! This is why we have to LOOK AT THE ORIGINAL FACTORY CODES IF PRESENT (NOT THE UNITED ELECTRONICS RELABEL CODE),, and identify the real tube manufacturer by codes, inner construction, shape of the tip, and shape of the getter ring to determine the real origin of the tubes.
UNITED (United Electrics Company, Newark, N.J., USA) was a company that simply re-labeled Tung-Sol, RCA, Sylvania, and GE USA made tubes for resale".
bcowen
Headphoneus Supremus
Forget that Japanese stuff. Here's some nice Made in the USA Mullards. I'm sure the similarity to an RCA is just due to the camera angle.
And only $150 (US) for this beautiful $20 pair of tubes. https://www.ebay.com/itm/MULLARD-6AS7G-PAIR-OF-NEW-OLD-STOCK-TUBES/164322388270?_trkparms=aid=111001&algo=REC.SEED&ao=1&asc=225074&meid=da9900cec66b4c7aa3aff50b539b25b1&pid=100290&rk=2&rkt=4&sd=233674644603&itm=164322388270&pmt=0&noa=1&pg=2060778&brand=Mullard&_trksid=p2060778.c100290.m3507
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cddc
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They are 100% pure RCA flavor "Mullard", guaranteed 
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