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Just trying to get back to this. Any ideas on where I should start to troubleshoot this one?

This one has me stumped as well.

No worries, I totally appreciate all the assistance.
The pot is a 12mm type. I don't have the circuit currently in front of me as it was given as a gift.
I will get it back this weekend and get you some pictures.

Any thoughts on why the Volume pot has such limited range? It's either 0 or full volume in a short turn of the knob.

I built two. One was a Christmas gift. I got that one working except I'm finding the Volume pot goes from off to full volume very quickly. Any insight you may have would be greatly appreciated. The other has more issues I'm trying to troubleshoot on the the tech board.

If I changed the Gain pot to 500kC should I change the VOL pot to something smaller like 50kB instead of 100kB? Also would changing it to a Log pot help?

Could this be the vactrols misbehaving? How do I test them?

R23 is 1K

I'm a bit lost as to what could be happening here. I have since rewired the volume pot as I had pin 1 & 3 crossed, but that didn't help at all.

Any thoughts? It seems like the volume pot should have more control. It just goes from almost completely dead  full on very quickly.

Do the pictures reveal anything?

Pictures attached. Thanks for your help.

I was referring to the volume pot. I did install a 100K pot


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Ok I'm having trouble with NF#2. Attached are the IC voltages. When I turn up the gain a bit it begins to howl, squelch, and make an awfully loud sound.
I'm including a dropbox link to show a  video I took of whats happening.
https://www.dropbox.com/sh/cw7lbgokp44913o/AAAg2V91wNnrrXFAeNpqeO2Ra?dl=0

What sort of control  should I expect from the volume pot? I should add I used a 500K gain pot as you mentioned in the build notes not the 1M


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