[morzh]

PS. I went and measured the charge voltage across the 1st cap when using an 82 Ohm resistor in series with a 1N4007 diode, when plugged directly into my wall outlet (127 VAC).

The original WV rating for the caps is 150V.
I used 160V Hi-rel Nichicon caps.

So, while on 117VAC, the voltage was within 155V or so.
When plugged into 127VAC, the DC voltage peaked at 165VDC and gradually, over 10-15 seconds, drop to 135VDC (the required voltage is 130VDC).
First this bothered me, then I remember my caps are 160V, not 150V.

The surge voltage rating for the Japanese-made aluminum caps is 115% of rated WV for those under 350V and 110% for those over 350V. The voltage can be applied for 30 seconds (the test) or, according to other sources, for 1 minute.

So, I want to shave off 5VDC. THis will require me to use a 150 Ohm resistor instead of 82 Ohm I am using now. At 75mA it will take off extra 5.2V.

This will bring the surge to 160V (the rated voltage) and the stabilized voltage to 130V exactly, when working off of 127VAC.

I will be using 10W cemented resistor, as my wattage will now come to 0.82W and I want the resistor warm, not hot. I just ordered those on Amazon and they will come tomorrow.

And, I have that last one 6.8uF cap for the filament string.