[Drake] Drake TR-7A pre-driver schematic.

[Deric Affleck]

Hello,

Does anyone have a copy of the schematics for the pre driver  and power amp circuits for the TR-7A that they could sent to me in PDF format? I encountered a problem with my TR-7A today with the power output falling off during transmit due to, I believe, thermal runaway of the pre-driver transistor. Unfortunately I only have the schematic for the early driver circuit.

Thanks in advance.

73, 

Deric, VY2DA