When i build one of the VCO's for my analog synth i spend half a weekend troubleshooting some strange intermittent problems it had.
In the end the only problem was a defect crocedile clip test cable 
When i build one of the VCO's for my analog synth i spend half a weekend troubleshooting some strange intermittent problems it had.
In the end the only problem was a defect crocedile clip test cable