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The rectangular device towards the right in your underchassis view is an audio couplate, contains a cap or two and a few resistors. These were common for a few years in radios starting in the mid fifties. It's probably OK. After you change the wax caps and electrolytics that Audubon suggested, check the power cord and plug, change if bad. Check that you have continuity through the loop antenna back to where it connects to the tuning cap. Then plug 'er in. If the tubes all light, 90% of the time it'll work right off. If they don't light, probably only one of them is burned out: use your ohmmeter to check heater pins on each tube: you can see which pins go to the heater looking through the side of the tube. Tubes are usually pretty reliable and don't need changing in a "found" radio.
Reece
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Reece
Perfection is hard to reach with a screwdriver.
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