1222 VCO tuning problems

[finmakesstuff]

hi
just got into making Kosmo format modules and got the 1222 kit for my birthday. Ive finished
building it after waiting a long time for components to arrive but I have a weird issue with the tuning. when I go onto certain octaves, the note starts weirdly descending in pitch until it just turns into a slow clicking. just wondering if anyone else has this problem and/or has any advice on how to fix it
thanks

[analogoutput]

General advice for troubleshooting a module and asking for help

(This is a wiki post, please add and correct!) Look and see if others have had the same problem. Use the Discourse search facility to find topics where the module you’re building is discussed. Inspect your work. Verify all components are correct values. Look for solder connections that are rough, irregular, skimpy, dull, or missed completely (we all do that!) and reflow them. Look for solder bridges between pads and remove them. Check your power connection. If it’s a Eurorack style power cabl…

Advice for troubleshooting 3340 based VCO

This is a wiki post; please correct and improve! This is written regarding the 1222 Performance Oscillator module, but similar things apply to the simple stripboard oscillator or other oscillators based on the 3340 chip. For the stripboard version also see If you are not getting good tones from the oscillator, do the following. If with the 1222 you are also not getting good behavior from the tuner, don’t waste time on trying to fix that yet. Get good tones on the outputs first — the tuner won…

[Riggidyboo]

Check the connection on the wiring to the octave switch

[finmakesstuff]

ive rewired the octave switch several times but that doesn’t seem to be the problem

[finmakesstuff]

im trying to get a video but it doesn’t like the file format

[analogoutput]

A video would have to go on YouTube or PeerTube or some other hosting site, then linked here.

If you put a YouTube link on its own line in a post, the video gets embedded here.

[finmakesstuff]

IMG_0545

does anyone know whats wrong with this/how to fix it?