[sdiy] Good choice of capacitor type for Moog 904A VCLPF 4 stages...

[Dave Manley]

Put pads for different size caps, that way your PCB is compatible with a range of parts, and you can see what you like best.

Dave

P.S. usually polystyrene is reserved for low leakage uses like in a sample/hold.

On May 7, 2014 5:52:30 PM PDT, Jean-Pierre Desrochers <jpdesroc at oricom.ca> wrote:
>I posted that question some days ago with no replies left..
>Here it is again:
>I'm not an engineer and try to figure out
>what type of capacitor would be the best to be used
>for the 4 low pass stages of a Moog 904A low pass filter ?
>I read that some type tends to be 'microphonic' and other have
>easily DC leakage... And I know that polystyrene are greatly
>appreciated
>for their 'stable' caracteristics.. (but $$$).
>I found Panasonic has the ECQ series that could be a choice
>but.. and what about film polypropylene ?
>I'm in the process of PCB design and need to choose
>the good cap footprints for the 3 capacitors I'll use
>which are: 1.2uf  0.33uf  and 0.075uf like in the
>original Moog drawing.
>
>Your good advises are WELCOME !!!
>JP
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