HP-35 Power Supply Waveforms

[cruff]

(04-06-2019 08:59 AM)albertofenini Wrote:  Diodes, Zener and smaller capacitors are new, of very close value to the original ones.

Did you use a silicon diode for CR5? That would cause a difference in the voltages. From the supply schematic we have been using, HP used germanium diodes in the original circuit, with their correspondingly lower forward voltage drop.