[sdiy] Serge Peak and Trough

[Erik Forsling]

Yes, I've seen that one. But isn't that a rather complicated way of doing 
the same thing? There's an awful lot of ICs. The original seems so very 
simple.

/Erik Forsling

Ken Stone wrote:
> Have a look at my Analog Logic module CGS26 (see sig for the URL)
>
> Ken
>
>> Hi there, tube and transistor lovers!
>>
>> Erik Forsling, Sweden. I have a question regarding this nice old
>> Serge circuit at Larry's site. (Have a look at
>> http://www.wiseguysynth.com/larry/schematics/serge.jpg)
>> Is seems like a simple, yet effective circuit. (The peak function
>> must be the best way to combine envelopes for example - to make
>> longer, more interesting envelopes.) However, they are both intended
>> for monopolar, positive signals only, right? I'd like to make the
>> trough output the negative half of incoming bipolar signals instead.
>> Am I right to assume that the +6V should then be connected to GND,
>> and the GND below the output to something like -6V(and some resistor
>> values changed)? Also, should I buffer the outputs, or is that kind
>> of overkill?
>>
>> Erik Forsling
>>
>>
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