I notice from your schematic that the 4069 is fed with 25 volts in total Datasheet says 15 volts max if I remember correctly.
122 is 1200 pF (and hardly broken) but if you want to test you can take 1 uF and 1 Mohms this will create a real slow oscillator. Don't forget to tie the 3 free inputs to either ground (pin 7) or supply voltage (pin 14).
122 is 1200 pF (and hardly broken) but if you want to test you can take 1 uF and 1 Mohms this will create a real slow oscillator. Don't forget to tie the 3 free inputs to either ground (pin 7) or supply voltage (pin 14).
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