Hi Ken and all,
One of my CGS48 VCO's has suddenly started completely loosing control of pitch.
Every output is displaying the same behaviour. The pitch is wavering like a mosquito and occasionally jumps or drops dramatically in pitch.
Supply voltage is fine , chips seem fine. I swapped the LM394s from my working VCO , no change.
FM, PWM and SINE TO SAW shaper all working.
Any ideas where i could start testing ?