Sorry for the long silence, but I got stuck away from home by Covid. Anyhow, back at MonAmour.
A couple of updates, which might mean very bad news for me. First, the diode that wasn't flat against the chassis was actually mounted upside down. I know, awfully stupid. I hope I didn't destroy everything by doing that. Anyhow, I've now turned it the right way up.
Second, as a side, I realised that I had soldered the drain wire of the 9 pin socket wire to 9L instead of 8L. This is now corrected (although probably unrelated, as the 5670 lamp passes the glow test).
Third, I've redone many of the solders. Prior to that, I had a small resistance (c. 50 Ohms) between B1 and B4. Now, the circuit is fully continuous, which, I hope, is a good thing, and about 8V going through the circuit (whether I test at B1-B4 or at H3 to terminal
.
But still no glow that I can see. Three questions, though:
1 - There is a capacitor. Does it needs to charge before the lamp glows (in which case, I might not be waiting long enough).
2 - What voltage should I have in that circuit? Do I still need to check for wrong soldering?
3 - Is it possible that I may have killed the capacitor?
Any other suggestions?
Sorry to be such an oaf.
