HP-35 Power Supply Waveforms

[albertofenini]

Hi there,
yes C7 is in the circuit (lower left of the breadboard picture) and when measured is ok,
we will add (tomorrow, local time now is 2.13AM wednesday april 10th) the resistor and
will test again, but the aim was to reply an HP65 as in the scheme with no additional pieces
and have it working.
What do you think of the fact that Q1 with HFE equal to 1 or equal to 2 gives the same
behavior of a Q1 with HFE 16 ? couldn't this an HFE this low the reason ?
thx again !