For a HP 8660C the Serial 2142A04089. About? 4/1982 manufacture.
Does Anyone have a 8660 unit to measure on the " 5.25 volt" power supply ( at A20 board and point "92" and "0", 0 is? ground- chassis) for reading the loads resistances with no power, capactiors discharged?
Measuring at the CR7 Anode to Cathode is the same as 5.25 V supply.
CR7 is at top of A20 board, removed top cover. Large stud_ mount SCR on top of A20.
HPs manual page 8-175/176 is the power supply.
How many Ohms from "5.25 volts to ground" by the ohm- meter?
Thank you for helping!
