AUDIO RESEARCH D-76A

Well you could always send it to me as well if you are close to the west coast. Actually, I have refurbished quite a few D-76A's in my time and in fact when the amp is done, it sounds better then new. The reason is, all the filter caps are replaced with non-twist lock caps. The twist locks that came standard with that amp have high ESR (equivalent series resistance) not a good thing for a filter cap to have. Unfortunately, that was all that was available when that amp was manufactured. All the new caps have little adapters so they fit in the circuit board spaces for the twist locks. Also, there are a number of zener diodes used as voltage references, and those tend to drift over time. When the amp is finished, and retubed, it is one awesome sounding amp. Hopefully, one day, ARC will make a commemorative version of that amp as it's truly a classic. I keep pushing them to do it. I think it's time to ask them again. lol

Hifigeek: I know this is about Torogis' amp, not mine, but I'm just curious about how much it costs to refurbish an old amp like the D-76A. Reason: one day I may have to refurbish my VS-115. Thanks

Dear Torogi,
I don't see where you say you have any problem with how the amp sounds. It is highly improbable that it could operate properly if indeed those tubes were not firing up. It is often difficult to see the glow from a tube; have you looked at them in a darkened room at night? I suspect that you have no problem at all. Or is there something perceptibly "wrong"? If so, what?

Hey Lew, on 4/3/11, Torogi says that the amp has tsouris in the right channel. It seems like Torogi may have bought a refurshing.

I tried turning off the light to see if its lighting up and I also tried touching the tube with my bear hand after two hours of the amp being turned on. I know I'm not suppose do that but I can't stand the fact one of the tube is not working. right now I cant barely hear the right channel so I stop using it. I entent to keep this amp for a long time so I will fix it or have it fix regardless.
I dont know why? may because the first time I use it with my vintage JBL it sounds warm and sweet. before I had that problem. by the way I live in west coast of British Columbia. Vancouver BC. how far are you from BC HIFIGEEK1?