Where can I buy the differential gears for the FM modulation SW ?
HarryA Nov 11, 2018 #2 for the hp 8640 signal generator? see: https://www.ebay.com/itm/Brass-Gear...3a0f718ef:m:mdnWviPMmNrHQDw1oaTPpww:rk:1:pf:0
for the hp 8640 signal generator? see: https://www.ebay.com/itm/Brass-Gear...3a0f718ef:m:mdnWviPMmNrHQDw1oaTPpww:rk:1:pf:0