Wanted quite urgently: 2 (or more) 12SN7-GTA's

Caveat emptor, Caveat venditor
Post Reply
User avatar
Thermionic Idler
Old Hand
Posts: 1018
Joined: Sun Apr 22, 2012 8:22 pm
Location: Southsea

#1 Wanted quite urgently: 2 (or more) 12SN7-GTA's

Post by Thermionic Idler »

Completed my 300B builds and they are sounding superb, unfortunately one of the two 12SN7's I have is a bit crackly (I know it's the valve because I've tried swapping it from one amp to the other and the problem follows the valve). i only bought two, because I'm an idiot.

They need to be the GTA designation because they are being run at quite high plate dissipation.

If you have any good 6V6-GT's also, that would be good to know - I think I have the same issue on one of the Raytheon 6V6's. EDIT - I've just ordered a set of three spare Raytheon 6V6's from the same source, so I should be good on those.

Will also be tracking eBay. Thanks!
Deck: Garrard 301 - Audio Origami PU7 - NW Analogue DH3S
Phono: Pete Millett LR, Lundahl SUT, AMB σ22 PSU
Linestage: Bruno Putzeys Balanced Pre + Hans Polak relay mod, LCDuino control
Power amps: 300B PP 'Symmetric Reichert'
Speakers: FF225WK Big Mets
User avatar
Ray P
No idea why I do this anymore
Posts: 6294
Joined: Thu Nov 22, 2007 5:18 pm
Location: Somerset

#2 Re: Wanted quite urgently: 2 (or more) 12SN7-GTA's

Post by Ray P »

Sorry, I couldn't resist!
Post Reply