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In the Forum: Melquiades Amplifier
In the Thread: About the pre-warming of playback
Post Subject: Heat LampsPosted by Paul S on: 8/14/2009
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Was it my old Audible Illusions pre-amp that kept lower voltage on all the time? But I was worried about constant 20% power causing constant 20% plate dissipation on my expensive NOS tubes, so I tested it and wound up unplugging it most of the time. In that case, it took 20 minutes to warm up to cruise speed off the 20% idle and an hour or so to come up from cold, at least as [often] I was using it at that time.
The ML2s have been "funny", taking 20 minutes to not be bad and another 25 minutes or so to start getting good, if I play them often. But if I leave them down for a while, it might take 4 or 5 hours for them to get good.
As someone who still suffers the Bad Electricity, I have noticed that warm up time is quite a bit shorter on occasions when electricity is good, FWIW.
Oddly. sometimes the amps improve from 20 minutes to an hour in and then they start getting worse again. I think the PS people once added a "de-gausing" feature on one of their power conditioners specifically to address this, or something like it.
Paul SRerurn to Romy the Cat's Site