Kittywampus Charge Pump Whine

[Tremster]

I built the Kittywampus (Mr. Black Thunderclaw) that whines like crazy.
The pedal calls for an LT1054 charge pump, I used an LT1054CP (isn't that the only 1054 you can get?).
If I put in an ICL7660SCPAZ the pedal is quiet and works fine.
It's weird that the "correct" IC doesn't work and the other one does. Should I just leave the 7660 in? Get a different 1054?
Can I link or cut some pins on the 1054 to make it work?
Anything else to consider if I leave the 7660?
Thank you.

 

[jwin615]

No schem posted yet
Curious about the frequency cap
I'd advise trying it on isolated power and see if it goes away.
If it does, but comes back when on a circuit with other pump pedals, you'll need to use a different pump or maybe try changing the frequency with a different cap value
See bottom of page 10 on the datasheet

https://www.ti.com/lit/ds/symlink/lt1054.pdf?ts=1722304403120