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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: Help ID this BP RCA posted by Uncle Mike on February 14, 2010 at 12:33:02:
TOP: Sylvania 6SN7GTA
BELOW: RCA 6SN7GTA
Uncle Mike,
The photos show the only 2- 6SN7's I have- (they were tossed in with an EICO HF-12 and some other tubes), an RCA with the code "3-48" and the markings 6SN7GTA and above a Sylvania also marked 6SN7GTA. The etched type number is in a wide octagon- visible in the photo- that reminds me more of the usual Tung Sol than the narrow RCA rectangle. This RCA is the only tube I know that has a bottom getter. Oddly, the other 6SN7, which is labeled Sylvania and has a different construction with a top getter has the same broad octagonal marking but on the top of the bottle.
The RCA looks very similar to yours, but I won't comment further as I don't have any experience with 6SN7's.
Cheers,
Bambi B
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Follow Ups
- Here's an RCA 6SN7GTA marked "3-48" - Bambi B 02/17/1006:48:46 02/17/10 (0)
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