McIntosh MC250 Amp 14L98 Schematics needed (Pictures of inside for reference)

[George Jett]

I'm in search for the Schematic from this early production MC250 Serial 14L98 right channel board has 2 blown transistors and a burnt resister from quick inspection... I have to give it a second look but would like to have a schematic to reference parts..

I took pictures so If someone ever needs them as reference here they are.. thanks
-George

 

[c_dk]

There are dozens of posts in the McIntosh forum regarding the repair of these early Mac transistor amps.

This is a early version with the class a transistor located o the chassis vs. heatsinked to the driver board.

The MC250 was the commercial version of the metered MC2505, the driver boards and such were identical between the two series if made during same time period so often the schematics can be used to work on either. There are schematics in the AKdatabase or since the factory still employs elves in Binghamton NY. to build new equipment the parts department can supply you with a schematic. The production elves might have the holiday week off but parts is usually open.