[Heathkit] SB-101 Audio Stage Toubleshooting

[jack m]

I just resurrected a nice SB-101 which is now on the air.  RF output is good on all bands.  The vox circuitry is still inoperative (PTT relay is OK) and I suspect an audio modulator gain issue which I have not yet gotten into. Has anyone developed a voltage chart for this rig?  I'd like to do some additional baseline test with a scope prior to replacing any more caps. The manual only has a resistance chart.  Also, has anyone documented the stage gain of the speech amplifier?  I did replace the 20/350 electrolytic capacitor on the modulator board (also same cap on the audio board), as these were drawing down the 300 vdc to 100 and 130 vdc, respectively.  They are back up to 275 vdc now with some temporary axial lead replacements a la bubba - the measured voltage of the HP-23 - which also needs some cap/diode work.   Regards, Jack