I recently got a Museum piece in my shop here.
It's a JET 511 table radio monster. Beautiful condition except no operation.
The good thing was that the schematic was posted to the underside shield panel below the main chassis.
I've also crossed all the euro-tubes to USA equivalents (just in case)
One tube has shown bad and a couple others test low. The main reason for not turning on was the 2 panel/pilot lamps in front .
These are connected in series with the heater circuits for the tubes. Bad lamps=no heaters. Lamps are Philips 8005D , 18 volt 100mA
The other probelm was a burnt resistor for one of the high-volt lines on one of the tubes.
I'll update as I go along and make up a photo-blog soon.
Cheers from a newbie,
Scott