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In Reply to: RCA 6SN7 identity posted by f1jim@yahoo.com on October 13, 2015 at 17:04:17:
I think you meant WGTAs, although they are more frequently seen in Sylvania tubes If you meant GTAs no W, that could easily be RCA Yours with opaque grey glass are most likely RCAs as you point out. I am a little confused. I will look through my Sylvanias for grey glass , not the shaded "graphite" type -correct?
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Follow Ups
- RE: RCA 6SN7 identity - Mechans 17:20:41 10/14/15 (1)
- RE: RCA 6SN7 identity - f1jim@yahoo.com 17:23:49 10/14/15 (0)