[Arran]

Thanks. I've progressed over to this corner without incident until now.
I found several circuit modifications in this area, but I don't think this broken solder connection was intentional.
I'm going to restore the wiring and component values to match the schematic.
[Image: http://farm8.staticflickr.com/7104/71746...21ce_z.jpg]

That does look like the work of a weekend radio mechanic, or a quick and dirty service shop. Something I've run into all too often, parts detatched, solder junctions floating in space, etc. This is one of the reasons that I always pull the chassis and look underneith before trying to power up the set on the variac. Initial inspection of a Stromberg and a Canadian Westinghouse set I picked up last year dissuaded me from powering those up, one had crumbling wire, the other a dangling burned flexable resistor and lots of 40 year old service work that needed checking over.
Regards
Arran