Okay, I've got a few caps coming via mail (I live on an island, so going to the local component store is not really in the cards for me).

I'll keep you all updated on the progress. Thanks for your help!

Just a thought this morning: could the hum be a bad filter cap? Funny enough, the original cap which is still installed says "good for one year" on it.

Roly, this is great info. Many thanks. Ohm test seems to yield normal results (190ohm-primary, continuity≈secondar). When the amplifier was given to me, the transformer looked like it had shaken loose from years of sitting around and then being moved a few times.

I've now connected the one side of the primary to the plate of the output valve (50L6GT) and the other side of the primary to the cathode of the rectifier(?) (35Z5). Secondary has been connected to the speaker and now there's quite a buzz coming from the speaker. It's uncontrollable via the 1meg volume pot (which when ohm tested looks to be working fine). Any thoughts?

Greetings all, I recently came into one of these dangerous little guys and decided to make it into a functioning piece again. I've added an iso transformer (no bridge...yet) and an earth'd cord. When I received the amp, the output transformer was completely disconnected (loose in the bottom of the cabinet) and I wasn't able to see exactly from where it had been removed/come off. I've been hard-pressed to find a schematic, so I'm wondering if any of you smart folks might be able to offer some advice on reconnecting it.

Cheers!