Thanks for all your replies. Will proceed as advised .
"CJT" wrote in message
...
John wrote:

How do you check a bridge rectifier in circuit to be absolutely sure it
needs replacing.

What makes you so sure that's even possible?

Conditions: No power applied as 2amp fuse in the
transformer primary blows immediately power is applied. Usual short
circuit procedures followed throughout but I don't place too much
reliance on this test . BTW, the rectifier (B40 C3200/2200)) is in a
theatre organ purchased from an outfit no longer in business and space on
the pcb is at a premium and discourages using single diodes.
Thanks - John


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