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And remember when replacing a selenium with a silicon diode, the band end of the diode, the cathode, goes towards the B+ in the radio, i.e., towards the part of the circuit with the electrolytic filter caps.
I have a Zenith AM/FM ca. 1960 with a selenium rectifier, the selenium was already fried when I got it, and it took out a resistor and melted a wire.
On the old selenium, which was painted blue, I put my ohm meter probe on one end and started at that end touching plate by plate with the other probe, got readings. About half way across, where the blue paint had turned black, no more readings.
Replaced the selenium and resistor, recapped it, and it plays like a champ. Best to get 'em outa there.
Reece
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Reece
Perfection is hard to reach with a screwdriver.
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