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SAE A501 Amplifier schematic needed.

glentron's picture

Im in need of the schematic for the sae A501 amplifier.I was testing the transistor banks and lost the locations for the 2SD424 and 2SB554 transistors.This was a yard sale find and would be nice to bring it back to life.N.A.L.B./No amplifiers left behind,Thanks Cheers Glentron



SAE A501 Amplifier schematic needed.

I don't have the schematic, but there is one thing you can do. The 2SD424 is an NPN transistor, so the collector (case) will have a positive voltage from the power supply; the B554 will have a negative voltage on the case.