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Absolutely 😀

Now I've just got to do the same with my Forum Vibe build! No wet signal on that one.
It can wait, though.

Thanks again👍

Alright, got it going!!!

I checked the row of electros. #1 all good, #2 all good, #3..........22uF
It must've somehow found it's way into the 1uF drawer. Or I absentmindedly grabbed the 22uF. Obviously overlooked it in the 78 times I went over all the parts, lol!!

Thanks for steering me in the right direction🤙🤙  I really appreciate it!

Cheers,
Thommo.

Thanks for the tips, guys! I'll try them out and see how it goes.

Yes, Speed pot set to 12 o'clock, as per the calibration method in the build doc.

Cheers,
Thommo.

(1) Harbinger 1.5 Univibe. 9v with charge pump version.

(2) LFO is static. Bulb lights and is active with the Gain and Offset trimmers. C/V and V/M switches are good. As are the Volume and Intensity controls. UniVibe effect is present with manual manipulation of the bulb trimmers.

(3) Found a short thread here with a similar problem. One or both MPSA13s being the culprit. I removed mine, replaced with sockets. Tried a few different sets with no change. When first powered, the bulb comes on brightly, with a very slight pulse. Then dies down to the trimmer settings and remains steady with no pulse. I also tried a different Speed pot with no change.
I've taken voltages as per the build doc, pictured below.

(4) No part or value subs were made. When looking over the board, I did find a couple of mistakes, which have been rectified.