AM radio using TV compactron tubes
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Oh yes, it used a 38HE7 Output tube if that's any help
The 38HE7 (and the similar 38HK7) were widely used as horizontal output/damper tubes in series-string portable TVs of late '60s through '70s vintage.
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This is rather off thread, but I used compactrons 11AR11, 8B10, and 38HK7 to build/ modify an AM radio. And another using a 58HE7, 12AC10 and 16BQ11. In that one, the heaters added up to about 85V, thus allowing the use of a 1N4004 diode to run the heaters off the powerline.