CEM3340: Difference between revisions

The [[Digisound 80-2]] and [[Digisound 80-3|80-3]] are well designed and versatile analogue VCO and VCLFO.<ref>[http://www.soundonsound.com/sos/jan00/articles/digisound80.htm Digisound 80, Modular Synthesizer (Retro)], SOS Jan 2000 by Paul Nagle</ref><ref>[http://www.digisound80.co.uk/digisound/modules/80-2.htm 80-2 Voltage Controlled Oscillator]</ref> To prevent the IC being put under too much stress if/when the outputs are shorted, all outputs should have a series 1K resistor. The triangle wave output is unbuffered and should never be used to drive an output directly, add a J201 FET follower to buffer it.<ref>[https://www.modwiggler.com/forum/viewtopic.php?t=24134 Does the A SOL MC-202 modular kit work on the SH-101?], MuffMod Wiggler forum, Nov 2010</ref> A better sine output can be achieved by using instead the [[Thomas Henry]] [[VCO-1 waveshaper]].<ref>[http://www.birthofasynth.com/Thomas_Henry/Pages/VCO-1.html The VCO-1 Project]</ref><ref>[https://www.modwiggler.com/forum/viewtopic.php?t=143298 VCO/LFO PCB for CEM3340 chips], MuffMod Wiggler forum, Aug 2015</ref>

* andrewF [https://www.modwiggler.com/forum/viewtopic.php?t=169673 CEM3340 VCO], MuffMod Wiggler forum, Oct. 2016, for Eurorack

* TimoRozendal [https://www.modwiggler.com/forum/viewtopic.php?t=170054 &#x0005B;pcb+panel&#x0005D; CEM3340 VCO for eurorack (8hp)], MuffMod Wiggler forum, Oct. 2016

* Datasette [https://www.modwiggler.com/forum/viewtopic.php?t=170929 OPECEM3340 – v3 (True Zero) on its way soon – Morph delayed], MuffMod Wiggler forum, Nov. 2016 and [https://github.com/xnotox?tab=repositories on Github], for Eurorack

* [https://www.modwiggler.com/forum/viewtopic.php?p=2773821 &#91;ORDER&#93; OCTOGINTA-II Digisound 80-2 eurorack version], MuffMod Wiggler forum, Feb 2018

* [https://www.modwiggler.com/forum/viewtopic.php?t=197467 Digisound in eurorack] and [https://www.modwiggler.com/forum/viewtopic.php?t=201029 &#091;ORDER&#093; Digisound eurorack], MuffMod Wiggler forum, Mar 2018