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[email protected] pfjw@aol.com is offline
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Default Op-Amp Substitution

Odd Question. I am repairing a Sony mixer for a friend and it has a bad JRC 5023 op amp. It is dead-shorted - so I know it is bad. The rest of the board, diodes and transistors check OK.

As it happens, from a previous repair, I happen to have some jfet LF356 op amps in stock.

The operating voltages are within range. But the 5023 is a video/audio amp, the 356 seems to be 'more so'.
Given that there is some urgency on this and the mixer is quite obsolete (1980s vintage), waiting to get the parts from Mouser (Not in stock) or Newark, Digikey and so forth is easy enough but for the time constraint.

NOTE: I can troubleshoot discrete components and such easily enough. I boggle a bit at ICs, so thanks in advance for any suggestions.

Peter Wieck
Melrose Park, PA