200e

2008/6/17 ezra buchla <ezra.buchla@gmail.com>:
> this "inversion" means that the negative range of the knob, with no
> input, produces whatever 0-10v output you like, with lag: handy.

Interesting, could be useful.

> also, the lag doesn't ever go completely down to zero, but gets very short.

Is that short as in "almost inaudible short" or just short when
applied to pitch for instance?

> everything else you say is true.

Thanks for clearing it up Ezra.

> i should point out that when reed talks about using a lagged pulse as
> an envelope, he's probably using an old 200 series pulse. the 200e
> pulses are so short that they are attentuated by the minimal upward
> lag in the 255. it is still a useful thing if you need a quick,
> attenuated percussive envelope (like for pitch on a "kick drum" patch)

Ok, good to know. I won't expect that to work then. If it still does
in some sense it will be a bonus :)

> -eb
>
> On Tue, Jun 17, 2008 at 4:42 AM, JB <ringmodulator@gmail.com> wrote:
>> I have been thinking (again) about the 255. On the Buchla Modular list
>> Reed wrote the following a couple of years ago:
>>
>> "Sorry to be so pro-255, but it's one heck of a useful module, or, as
>> David Kean calls it, "a Swiss Army knife." Fire a pulse into one of
>> those holes and it's an envelope generator. With any Buchla stuff
>> it's good to have extra attenuators & inverters lying around (and if
>> you have any 100-series modules it's a godsend). Not to mention the
>> luxury of being able to pepper the tiniest soupcon of lag to smooth
>> clicks out of certain patches. I wish it had Schmitt triggers,
>> though."
>>
>> From this description it sounds like a very useful module; attenuation
>> and inversion of CV, extra envelopes when 281 is occupied with other
>> tasks, lag.
>>
>> I assume the following:
>>
>> 1. With multiplier knob at 12 o'clock no CV is passed through.
>> 2. With multiplier knob at fully CW input and output is identical
>> (assuming no lag applied)
>> 3. With multiplier knob at fully CCW output is a fully inverted
>> version of input* (assuming no lag applied)
>> 4. +Lag is lag on rising CV, -Lag is lag on falling CV.
>> 5. When lag knobs are set fully CCW no lag at all is applied to CV out.
>>
>> *) I assume inverted in this case means voltages goes below zero. How
>> does 200e modules react to negative voltage? The 256e seems to have a
>> different form of inversion where i believe the voltage is inverted
>> within the positive range.
>>
>> Am i right? Can someone who has one please reply?
>>
>> (If there are enough "yes" answers to these statements i might be
>> interested in trading a 259e for one of these + cash, anyone
>> interested)
>>
>> Thanks
>> Johan
>>
>>
>
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