[sdiy] VCO bleed through to other modules

[Luís Marka]

I suspect it is a grounding problem. I have a system with some 30 
modules (6 VCOs) and I get no crosstalk at all.
How do you wire the power for your modules? This, and grounding, is the 
only possible link between them.


Jim Bob escreveu:
> Ive got an asm-1 style VCO and a cgs bi-n-tic filter.. which is 
> basically 1/2 VCO 1/2 filter.    Both of them bleed through into other 
> modules.  I can hear them in my VCA, and I just built a noise module 
> and I can hear them LOUDLY in it.  The noise sounds like an equil mix 
> of noise and VCO!!  I've added a few extra sets of bypass caps, and 
> ferrite beads on the noise module, and it makes absolutely no 
> difference.  My power supply is a power 1 800ma supply.   I can also 
> hear the VCO a little if I just touch the bare aluminum of my front 
> panels w/ a wire that goes into my VCA.
>
> I had some sloppy front panel wiring on the VCO, as it was one of the 
> first modules I built.  I rewired the panel for the vco very well w/ 
> short wires, and that made no difference. 
>
> Is this a common problem?  what are some solutions to it?  The 
> standard bypass caps dont seem to do a thing.
>
> Thanks,!
> Scott
>
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