[sdiy] Easy expo VCO suggestions for seqencer's LFO clock..

[Jean-Pierre Desrochers]

Tom, 

The 2164 VCO seems to be quite a good idea..
I was also thinking about your Digital PIC VCO..
Let me think about all these nice suggestions.. 

Best, 

JP 

************************************* 

Le 2017-10-06 13:29, Tom Wiltshire a écrit : 

> Another nice idea. You could do a lovely simple trip/sqr LFO around a 2164.
> 
> T.
> 
> ==================
> Electric Druid
> Synth & Stompbox DIY
> ==================
> On 6 Oct 2017, at 17:31, Roman <modular at go2.pl> wrote: And while we're talking about who's loving what chips, why don't you make that VCO out of V2164? 2164 VCO is so simple it doesn't need a schematics, and if one VCA cell used for temperature compensation you get good enough stability. An integrator driven by 2164 followed by comparator with a few volts hysteresis, feeding back to 2164 input. Here's your square wave. And CV input is already exponential. Roman Dnia 6 października 2017 18:07 Jacob Watters <jacobwatters at gmail.com> napisał(a): Because it is a simple vco on a chip and I love tinkering with cmos stuff, so those options usually come to mind first. On Oct 6, 2017 10:37 AM, "Jean-Pierre Desrochers" <jpdesroc at oricom.ca> wrote: Thanks Jacob, But why did you choose the X-4046 VCO from anything ? Just curious.. JP ************************************************ Le 2017-10-06 10:05, Jacob Watters a écrit : A 4046 with an expo convertor might do. Remove all the wave
 shaping
parts from the X-4046 VCO if you need a schematic to follow. On Oct 6, 2017 9:33 AM, "Jean-Pierre Desrochers" <jpdesroc at oricom.ca> wrote: Hi list, Anybody have a suggestion for an easy to build expo VCO (1v/oct) that would be used as an LFO for my next sequencer project ? I only need pulses output to drive digital sequence chips and some stability because it's gonna be the sequencer's internal clock. I've been checking around on the web. Thomas Henry VCO designs could do but I'm not sure. Again, I only need square (pulses) outputs. Thanks. _______________________________________________ Synth-diy mailing list Synth-diy at synth-diy.org http://synth-diy.org/mailman/listinfo/synth-diy [1] -- « L'indépendance, c'est comme un pont : avant, personne n'en veut, après, tout le monde le prend. » Félix Leclerc _______________________________________________ Synth-diy mailing list Synth-diy at synth-diy.org http://synth-diy.org/mailman/listinfo/synth-diy [1]
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« L'indépendance, c'est comme un pont : 
avant, personne n'en veut, après, tout le monde le prend. »
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