[sdiy] Vocal Filter

[John L Marshall]

I have seen sockets with built-in bypass. They were too expensive. Probably
only suitable for patching problems with original design.

Multilayer board have a whole plane for ground and supply. They are usually
the center two layers and are close spaced. Those two surfaces make an
effective distributed capacitor.

----- Original Message -----
From: Glen <mclilith at ezwv.com>
To: Paul Maddox <Paul.Maddox at wavesynth.com>; Synth DIY List
<synth-diy at dropmix.xs4all.nl>
Sent: Tuesday, December 11, 2001 10:08 PM
Subject: Re: [sdiy] Vocal Filter


> At 04:36 PM 12/11/01 , Paul Maddox wrote:
> >all,
> >
> >hehehe,
> >wanna see INSANE decoupling???
>
> And Crow had written earlier:
> >>   Contrast this board with the TKC board from a CS-80.  In their
infinite
> >> wisdom, Yamaha decided the board needed no decoupling at all.  Thus,
the
> >> 29-chip board (all 4000-series CMOS) has no decoupling caps:
>
> If I understand correctly, it is possible to buy chip sockets with caps
> built-in. I don't suppose either PPG or Yamaha had ever used something
like
> this?
>
> Has anyone on the list used such sockets? It seems like a good idea for
digital
> logic chips. However, I could see how it might confuse a repairman working
on a
> circuit board using such sockets.
>
>
> Later,
> Glen