Gentlemen,
Before I go any further with questions, I'm going to go over what I've already done and double check everything. So far I have found a capacitor that I replaced with the wrong value and a broken solder to ground.
Also I need to digest what you have asked of me so far. The revelation that the original schematic wouldn't help much has given me a bit to think about.
I took a good number of "before" photos, and I'll post those with like "after" photos. Maybe the problem is obvious to "experienced" eyes.
Bob91343, The unit
was working before I did the component swap, albeit, not very well. At present all I get out of it is hum. The hum is volume sensitive and increases in pitch as I move the tuner up in kilocycles.
I also have what sounds to be a brief arching in the on/off switch about 5 sec. after it's switched on.
I don't get any difference in hum when I touch the cap on 6Q7.
The only test equipment I have is an emissions tube tester.
Dieseljeep, Thanks for the nod on the find. It gives me some sorely needed encouragement. The cabinet is in wonderful shape. I've got it stripped and the inlay is really quite nice. I'll need to replace the grill cloth and a new dial cover...crystal or plastic. I haven't decided.
I really do enjoy restoring things and don't give up easily.
My time with tubes has been short. My only other venture was a restoration of a Fisher 800c. If you feel inclined to have a look you can view it here.
It is from start to finish, so it's quite long. But it will give you an idea about what my level of comprehension is.
http://www.audiokarma.org/forums/sho...d.php?t=373498
Thank for taking the time to help.
I'll post again when I've got something worth going over.
martin