Quote:
Originally Posted by LADR
I got this set for free, just had to drive 75 miles both ways to get it but for free why not. I got this set home and powered it up, the tubes light up but no HV or sound, i knew then this set had no B+ so i pulled the chassis and found many a problem like falling apart sand resistors, fried and cracked resistors, split bumblebees and i think the selenium is bad but not sure at this moment. All the caps and some resistors will need to be replaced obviously. I haven’t checked the tubes yet because my tester went out and I don’t have a spare, but luckily a stereo store near me lets you test tubes for free and there is an upcoming hamfest i’m going so i can hopefully get a new tester.
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The tubes light so the glo-bar resistor must be ok. Just check the sand resistors to see if they're still good for now! I've seen a few of them with cracked resistors. You probably need a schematic to determine resistors that are burnt beyond recognition. Of course, you have to change the split caps.
No B+, check the plug in resistor on top of the chassis, usually a 7.5 ohm, 5 watt. Make sure the speaker is plugged in, as the field coil is the B+ choke.