Re: OT: DIY stereo tube amps - Saab General Bulletin Board - Saabnet.com
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Check out Audio Asylum forums - there's lots of knowledge over there. I built a Welborne Labs Laurel 300B stereo kit in the late 90's, and I recall there is a bleeder resistor to drain the B+ caps after powerdown. They key is to get the right value that won't have negative implications on the circuit when running, but does the job when you kill the power.
What speakers will you run with that amp? Hopefully something mid 90's efficiency or higher.
If you really get the bug, look for old issues of Sound Practices magazine. It's all about DIY high efficiency and single ended triodes. Sonic bliss!
Cheers!
Randy
eXemplar horn speakers (106db)
one of these: bugle boy 45 amp (~1.5W), Welborne 300B amp (~8W), Pass Aleph Mini J (~12W Class A solid state)
Posts in this Thread:
- OT: DIY stereo tube amps, Gregg , Tue, 19 Mar 2013 13:22:39
- Re: OT: DIY stereo tube amps, Randy Thatcher , Thu, 21 Mar 2013 18:18:14 <-- Viewing This Message
- Ah...tube amps.....fond memories...., TKC, Thu, 21 Mar 2013 08:05:39
- Shocked by an old tube amp, Dale, Thu, 21 Mar 2013 05:29:48
- Re: OT: DIY stereo tube amps, Gene N , Wed, 20 Mar 2013 09:27:40
- Re: OT: DIY stereo tube amps, Name Left Blank, Wed, 20 Mar 2013 08:56:15
- Re: OT: DIY stereo tube amps, ELaw , Tue, 19 Mar 2013 17:09:57
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