hifi engine

Musical Fidelity The Preamp.

I have a nice Musical Fidelity The Preamp mk1. The Serial no is 113.
Sounds great, but requires new light bulbs for the display to bring it
up to as new condition. Does anyone have a schematic for this amp
or any info regarding the type of lights fitted. Also has noisy pot, but
have located replacement radiohm 22k LogB replacement.

Kind Regards
Paul Sinclair.