Click here for the following:
01. EML-101 Multimode VCF Familiar SEM style State Variable Filter LP/BP/HP
with discrete components instead OTAs.
02. SERGE Triple Waveshaper Module Triple WS and one part of Serge Waveform Multiplier
use this scheme, just one opamp from LM3900,
it takes saw VCO input and rectify it to triangle/sine
output, but can also be timbre modulator for any signal.
03. BUCHLA #194 Fixed Bandpass Filter Not very exotic module, but it might come handy.
Splits input signal into four bands 200/200-900/
900-4000/4000 Hz, using just few transistors.
04. KORG Polysix Ensemble LFO Dual fixed three phase LFO used for modulating triple
BBD delay lines in Ensemble effects. Uses single CD4069
and has CV control of Intensity (amplitude).
05. MINIMOOG VCA Simple discrete VCA with 9 transistors. Crucial part of the
Mini's sound, together with it's VCOs, VCF and fast EGs.
06. BUCHLA #291 Dual Bandpass VCF VCBPF with Vactrols and lots of control/process power.
VC center freq (30Hz-15kHz) with offset, VC bandwidth
(1 semitone-4 octaves) with offset, resonance, FM,
input level, could be trimmed for selfosc.
Low noise and high dynamic range.
07. SERGE Sequential Pulse Source 10-step gate/trigger sequencer with CD4017. (updated)
08. OBERHEIM Matrix-6 White Noise Simple but nice sounding noise generator from polysynth.
09. R0LAND D-Beam IR Light Controller with CV (thanks to D.F.) (partial schem)
10. KORG MS-20 LFO Superb LFO with waveshape and range controls.
UpSaw/Triangle/DownSaw and Pulse waveforms. (updated)
11. SERGE Lin/Log VCA Standard CA3080 based design. (updated)
12. ROLAND SH-09 Noise and S/H My favourite! Simple transistor white/pink noise generator
and S/H with two FETs. Add it to your boring LFO section!
13. EMS VCS3 Type Ring Modulator Neat RM based on famous VCS Synthi. Very low parts count,
but distinctive sound. Looks like discrete MC1496 chip!
14. MOOG Source VC LFO Modification of standard tri/square LFO, with additional VCA.
VC and manual controls of speed and level parameters.
15. SERGE Ring Modulator OTA design, based on VCA, reliable stuff. (updated)
16. EML 101 Schematics Scans of (in)famous EML 101 schematics. Expo convertors, Oscillators
1,2 & 3 and VCF are here. Interesting "lo-end" approach.
Contact me if you have the rest of the schematics for this beast.
17. ROLAND/KORG Transistor VCA Based on Roland JX-3P and Korg MS10/20/Polysix VCAs.
Transistor and opamp, simple, noisy, strange, but works after all!
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