In Reply to: Beg to differ posted by unclestu on July 25, 2015 at 14:46:58:
Yes ! The original stereo amp ran hot and cracked the phenolic boards in time. Yet, nobody I know has ever heard of a blown PA-774 power tranny. Using a good Stereo 35 with vintage Euro or UK EL84s and 7247s will be a rewarding sonic experience.
Upgrading the boards to teflon, rebuilding the power supply sensibly, replacing the few caps sensibly, plus separating the cathode bias arrangement for each channel if quads of EL84s are unavailable could be what the doctor ordered...Stereo 35 is one fine stereo amp.
I have not seen a "new" version, but I can envision one with two power trannies, a la dual mono, plus a bit more conservative operating voltages for the outputs; but the Z565 output iron is hard to beat...
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Follow Ups
- Dynaco ST-35 was undoubtedly their best stereo amp effort... - Interstage Tranny 16:01:53 07/25/15 (1)
- RE: Dynaco ST-35 was undoubtedly their best stereo amp effort... - Eli Duttman 16:16:21 07/25/15 (0)