Hi,
I built one of these LW/MW/SW/VHF DFMs in the early '80s, and now want to modify
the offset settings for use with a different radio. Unfortunately, the circuit &
instructions were lost a long tome ago.
Does anyone have a circuit for this unit they could let me have a copy of, or
even just details of the diode matrix for setting the offsets?

TIA

TL.

(Ps. reply to the group in the first instance)