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Gold Lion KT66s handle 560v B+?
Posted: Sun Feb 06, 2011 1:25 am
by Ydna
The title says it all, could gold lion KT66s handle 560v B+, or would they die really quickly?
Re: Gold Lion KT66s handle 560v B+?
Posted: Sun Feb 06, 2011 10:23 am
by AustinTx
Don't know about 560v....but....
I have a GL KT66 quad that runs at 535v B+. Two Years and working well.
I regulate the AC to elimate those nasty tube killing AC spikes.
JJ's lasted 5 minutes, Shugs a week, GL reissues are the only
new production tubes to survive so far. Lowering voltages is always an option,
but will change the character of the amp quite a bit.
Re: Gold Lion KT66s handle 560v B+?
Posted: Sun Feb 06, 2011 11:24 am
by Ydna
Alright. If they're lasting that long at 535v, then I'll try them out at 560v. If they die, I wont be doing that again, haha.
Re: Gold Lion KT66s handle 560v B+?
Posted: Wed Apr 13, 2011 9:40 am
by Roadrunner
I'd have to say no, they don't do 560 volt well at all.
I just had a Gold Lion reissue go south on me the other day. In a '66 JTM45/100 (a real one, not a repro).
Amp was running on 115 volts AC, the B+ is around 560 volts, maybe a bit more. The tubes had about 3 hours of playing time.
No more reissue tubes in that amp, gonna have to be GEC's.
Re: Gold Lion KT66s handle 560v B+?
Posted: Wed Apr 13, 2011 4:27 pm
by Ydna
Hm. Well, Brian Wallace said he has a quad of Valve Arts that can handle it. So I'll give 560v a chance with Gold Lions. If it doesn't work the M e r r e n transformers have a middle tap at 500v.