[sdiy] Vocal Filter

The Old Crow oldcrow at oldcrows.net
Tue Dec 11 17:58:20 CET 2001

On Tue, 11 Dec 2001, harry bissell wrote:

> Yes... I got the 150 (or so) caps soldered in. I LIKE decoupling caps.
> I don't know if Jim posted a pciture of the completed PCB yet... but
> anyone interested in what a nice PCB layout looks like should look
> HARD at this one. The power and decoupling is done very well...
> forethought, not afterthought !!!

  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:


  An hour later:




More information about the Synth-diy mailing list