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Cgs synth

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Re: Ground loops (was tube vca)

2003-12-07 by charlesosthelder

Good advice Ken! Thanks again. That's pretty much the scheme I
envisioned, but the 1K resistor is a good idea.

The 6064 tube does very well with the 15 volt plate supply. Would
the sheet beam tubes perform this well?

Chub-feeling less isolated
>
> Don't isolate your grounds - it can cause potential build up between
> modules. What I do is make sure the metalwork of the PSU is
grounded to the
> mains ground, but ensure that the 0V line is isolated from ground.
I then
> put a 1k 2W to 5W resistor between the 0V line and the case ground.
This
> keeps the 0V line from jacking itself up, and prevents hum loops.
Of course
> you will need to make sure the PSU is not bolted to a common metal
chassis
> with the other supplies.
>
> Ken
>
______________________________________________________________________
_
> Ken Stone sasami@h...
> Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
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