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#1
11-24-2008, 07:44 AM
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any specific diode used ???
A friend of mine has a early 50s philco b/w 21 inch tv that he has just aquiried . Anyhow it has two selenium rectifiers in it . Is there any specific diode used to replace these or are there different replacements according to application .
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#2
11-24-2008, 09:57 AM
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1N4007 pretty much works for most replacements of selenium rectifiers in power supplies. You might need to put something like a 30 ohm resistor in series with the output since selenium stacks have a significant voltage drop.
John Y.
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#3
11-24-2008, 10:39 PM
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What he said. Thats what I did to my '53 Philco that had the two selenium rectifiers. Is your friend's TV one of those split chassis units? If so, its probably the same type of set I recently restored. I can send him the schematics if he needs them.
__________________
Random bits of stuff in the collection: Yamaha YP-D4 turntable with B&O MMC 10E cart Allied 495 receiver 2 Magnavox amps, AMP150 and an AMP178, currently under the knife. Onkyo TX-4500 Onkyo Radian III speakers
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