[Heathkit] Power supply schematic

[Dennis Berry]

Moderator, I hope this is not too off topic.

I'm in need of an old Lamda LM C12 power supply schematic.  I have one that is alive, but wrong voltage coming out.  Nothing 'obvious' and would be easier with a schematic.

Does anyone have one tucked away with their old Heath schematics?

    Dennis, NU8S

(Reply direct if you don't mind)