Pandemonium

Pandemonium is the first, and work in progress, synth project of baal laab, started in april 2019 , MU format

1 Low Frequency Oscillator – Variable skew of Music From Outer Space, thanks, Ray Wilson;
1 Quad LFO Variable skew MFOS, baal laab’s assemblage;
5 Voltage Controlled Oscillator – 2 versions based on Yusynth circuits, merci, Yves Ulson;
2 Envelope Generator ADSR – Yusynth;
2 Voltage Controlled Amplifier – Based on VCA-1 of Thomas Henry, thanks, Thomas Henry;
1 Dual Voltage Controlled Amplifier VCA AC+VCA DC – Simple VCA Yusynth ;
1 “Rings” module – 2 Classic unpowered ring modulator, 1 buffered ring modulator;
1 4×4 Multiples panel;
1 Quad DC Modulation Mixer MFOS;
1 +15/-15 simple power supply designed and assembled by baal laab;
1 +12/-12 simple power supply designed and assembled by baal laab;
(as long as there is space, my old fellow Watsom stays in the cabinet!)

phase 2 – under construction

– MIDI to cv CV-12 Midimuso;
– Minimoog VCF clone;
– Steiner & Parker VCF;
– Sample & hold + noise generator ;
– VC-LFO;
– Attenuators panel;
– MFOS 16 step sequencer.

modules

LFOs

VCOs

I assembled two variations of Yusynth VCO changing the 2SC1583 or the BC547s pair.
At the first one version I used pairs of matched transistors 2N3904 and in the second, the THAT 340P14U, to do so, it was necessary to redesign the PCBs.

VCAs

ADSRs

rings

Mixer

Multiples