In article , "Ron Price"
wrote:

Can anyone help with the voltage and current rating of an old bridge
rectifier - Westinghouse FC442?
It's not listed in any of my data books.

Ron-

Does the equipment it came out of happen to have "FC" in it name? It
could be a proprietary part made for that company. As such, Westinghouse
would probably never reveal the specs to anyone else.

Could there be any other markings on the device? The FC442 might also be
a form of date-code, such as 42nd week of 2004 or 1994, 1984, 1974, et
cetera.

You may be able to determine a reverse breakdown voltage with a variable
high-voltage power supply and a current-limiting resistor, but you may
have to analyze the circuit it came out of for a minimum current rating.

Does the equipment happen to have service information available from some
place like Howard W. Sams? If so, they often have cross-reference
information for parts.

73, Fred, K4DII