Spectronics DD-1 Schematic

[KF9CM]

I've already Googled this and no luck, except for the operators manual. Does anyone have a schematic for a Spectronics DD-1 series frequency Display? I'll take a DD-1, DD-1C or DD-1T


TNX Gary, KF9CM

[Pete, WA2CWA]

I have three different DD-1 type manuals and none came with the schematic. They never issued any service related document. QST had a review of the DD-1 in 1974. However, I'll willing to bet you can take a typical early to mid 70's designed frequency counter and you would probably have most of the same circuitry. The main differences would be in the interface circuitry to the particular equipment.

[KF9CM]

This unit has been modified for some reason and I'll need a schematic to put it back to original.

I love it when CBers get together and want to play electronics.

TNX anyway


Gary, KF9CM