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'80 DR-504 warm up

Posted: Mon Apr 25, 2016 8:54 pm
by gawfshot
Somebody pinch me? I just picked up a DR-504. The tubes don't glow and the power light is off in Standby. Is this normal? Should I care? Works fine with the Mains on. Thankyouverymuch.

Re: '80 DR-504 warm up

Posted: Tue Apr 26, 2016 6:26 pm
by gawfshot
OK. I think I've been doing this backwards on my other amps for a LONG time. There is clearly a lack of consensus on the web and another group contends it's not necessary at all, but I digress. You turn the mains on FIRST and THEN the standby after an adequate warm up...
Cheers

Re: '80 DR-504 warm up

Posted: Tue Apr 26, 2016 6:43 pm
by Dr.HI-TONE
That makes much more sense.
Always turn the Mains "on" first to let the tubes warm up.
Then turn on the standby switch to play.