Synth-DIY Yahoo! Groups Archives

MOTM-480 CS-80 VCF board

2003-10-12 by Paul Schreiber

Yet another failed photo attempt:

www.synthtech.com/pix/m480_1.jpg

Stuffed MOTM-480 CS-80 VCF (series of 2 identical state variable filters with independent
cutoff/resonance paths). Spot the goof-up (good thing this is a prototype!).

Initial tests: 100% functional, "test equipment"-wise. Now it's off to beta testing versus actual
CS-80s.

Paul S.

Re: MOTM-480 CS-80 VCF board

2003-10-12 by synthasaurus

--- In motm@yahoogroups.com, "Paul Schreiber" <synth1@a...> wrote:
Spot the goof-up (good thing this is a prototype!).

The two ICs under the Tempcos - incorrect board layout?

If I'm right, I'd be happy to receive that board as my winning gift! :-)

Andrew

Re: [motm] MOTM-480 CS-80 VCF board

2003-10-12 by groovyshaman@snet.net

Ooh, look at all those parts. Heh, it looks like the ics under the
tempcos have lost some legs and have been shifted. Do I see wires under
there? :) But I also notice that the tranny pairs at the right edge don't
have any heatsink goo on them. Maybe this is the plan, one less
opportunity to get that stuff everywhere.

G3org3

----- Original Message -----

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From: "Paul Schreiber" <synth1@...>
To: "synthDIY" <synth-diy@...>; "analog heaven"
<analogue@...>
Sent: Saturday, October 11, 2003 11:37 PM
Subject: [motm] MOTM-480 CS-80 VCF board

> Yet another failed photo attempt:
>
> www.synthtech.com/pix/m480_1.jpg
>
> Stuffed MOTM-480 CS-80 VCF (series of 2 identical state variable filters
with independent
> cutoff/resonance paths). Spot the goof-up (good thing this is a
prototype!).
>
> Initial tests: 100% functional, "test equipment"-wise. Now it's off to
beta testing versus actual
> CS-80s.
>
> Paul S.