'80 DR-504 warm up

[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.

[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

[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.