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Cgs synth

Index last updated: 2026-04-28 23:16 UTC

Message

Re: Wave Multiplier

2005-03-11 by waveform100

check it out on good monitors Andy, I heard mine yesterday the first
time and I am completely happy with it. Its a lot better than I
thought. Very rich and fertile. What I didn't expect was, that the
sqr-inputs also gives nice results with a Triangle on the input.


Olivier Gerber


--- In cgs_synth@yahoogroups.com, "Andy Wilson" <andy@t...> wrote:
> Hi Ken,
>
> Just a quick question regarding the Wavemultiplier. I was
> breadboarding it up last night, and I found that the pulse out
> quickly turns to a triangle wave as the frequency is increased.
>
> The 'scope reveals that this is due to slew rate limiting of the
> LM324 as it tries to crash from rail to rail at only 0.5V/uS. I'm
> just curious; is this by design to mimic what the original Serge
unit
> did?
>
> I intend to put a TL074 in for IC4 which has a better slew rate of
> 13V/uS and sharpen up those edges. I'll also attenuate the output
as
> +/-15V is a bit hot :-0
>
> Fun Circuit, but I must admit I haven't listened to it yet. Lots of
> pretty pictures on the 'scope tho'.
>
> All the best
>
> Andy
> ---
>
> Andy Wilson
> http://www.techman.synth.net
> andy@t...

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