10-25-2024, 06:56 AM
A few days ago I connected the various components. In so far as I know after checking the cicuits against the RadiolaGuy schematic, I have it all correct.
But the B+ voltages are way off, about 260 V between terminal connections 7 & 9, and same between 8 & 9.
I'm wondering if the suggestions his schematic provides for different inductor and capacitor values may be off. These are for a 10mH inductor followed by 2 5 mH inductors and 4uF capacitors replacing the 1 uF capacitors. These are suggested if "swinging choke" is not used. I assume the choke/inductor I bought is not a "swinging choke."
On the positive side, I was able to hear very faint but distinct music playing, the filaments all heated and there was no smoke.
I'm tempted to remove and replace the 4uF capacitors with 1uF capacitors if this might drop the voltages to the 145V & 165V values for the 7-9 & 8-9 terminal strop connections.
But the B+ voltages are way off, about 260 V between terminal connections 7 & 9, and same between 8 & 9.
I'm wondering if the suggestions his schematic provides for different inductor and capacitor values may be off. These are for a 10mH inductor followed by 2 5 mH inductors and 4uF capacitors replacing the 1 uF capacitors. These are suggested if "swinging choke" is not used. I assume the choke/inductor I bought is not a "swinging choke."
On the positive side, I was able to hear very faint but distinct music playing, the filaments all heated and there was no smoke.
I'm tempted to remove and replace the 4uF capacitors with 1uF capacitors if this might drop the voltages to the 145V & 165V values for the 7-9 & 8-9 terminal strop connections.
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