[sdiy] A few diy questions...

[Harry Bissell Jr]

I would not recommend separating the lowpass
filter and the multimode circuit.  You need to connect
at four points (minimum) and these are very sensitive
to noise pickup.  There would be little benefit to
you.

You could use other filters to achieve the same
result... a Moog ladder could work the same (with
a lot of extra circuitry)

H^) harry


--- Josh Henne <jh03qb at student.ocad.ca> wrote:

> Hi all;
> 
>  I'm wondering what experiences people have had
> trying to clone the series 100
> stuff? The schematics found on Magnus's sight look
> fairly straight forward and
> there seems to be many replacement trannies etc on
> mouser/digikey. Is the
> NTE123A a decent replacement for the 2N3565? There
> seems to be alot of those
> used in the 100 series.
> 
>  Anyway I'm starting my modular system by building
> my two ASM2's and 9090 kits
> first. Then I'd like to build four 3372 based Matrix
> 12 filter clones. I wonder
> if I'd be able to separate the 3372 and that extra
> multimode filter cicuitry
> into two modules. Just have a 3372 lowpass module,
> and another module that
> allows multi-mode filtering when a similar 24db
> filter (or any other audio
> source) is plugged in. Maybe make a bypass using a
> switching jack allowing an
> different audio source besides the 3372. I have a
> couple of CEM 3396 and wonder
> if anyone's worked with those?
> 
>  I think the first series 100 module I'm going to
> build is the mixer module
> seeing as I don't have one. Also, are there any
> other Optoisolators fit for
> lowpass gates?.... 
> 
> I should probably just buy a bunch of stuff and
> start experimenting. ^_^ 
> 
> Thanks
> 
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