The Stovebolt Site Forums The Shop Area The Electrical Bay The Radio Bench Excellent, another radio to play with

update on the radio

for the sake of authenticity, i'm going to reuse the mechanical vibrator in this radio
not surprising it did not test good
but i've fixed these before, this time i'll try to be a bit more gentile with the parts so it doesn't look so bad when i'm done.

vibrator delco part number 7239124 = 6V, 1-1/2 x 3-1/8 inches, Frequency 105-110 Hz, 6 Amps max. load

photos of disassembly attached, going to clean up all the parts and do the contact points with some wet stone and sandpaper,
some articles state to never use "emery" pad or cloth on these kinds of contact points (similar for voltage regulators and such), a file is okay

the idea being that emery will leave behind microscopic particles embedded in the surface, sure it will work but longevity tests result in shorter time to failure
dunno any more details, but the wet sandpaper is handy and does a nice job, seems to me sandpaper should be as bad as emery cloth then, but maybe the aluminum oxide grit is okay compared to diamond grit.
-s