Erica Synths DIY Modulator is 35mm deep, skiff friendly, has solid mechanical construction and doesn’t require wiring.
The Modulator essentially is LFO with simultaneous triangle and square wave outputs, clockable S&H with external CV input and noise source. A kit comes with two versions of noise generator – simple, transistor-based and more complex Zener diode-based one. Latest provides perfect, full spectrum white noise.
LFO with triangle and pulse wave outputs
Choice of transistor-based or Zener diode-based noise generator for massive, full spectrum white noise
Nothing is more unique to your music than you. Press and slide your fingers along the four pads to turn your movements into CV and smooth out the rough edges with built-in slew. Use it as a keyboard, drum pads, faders, LFOs, voltage memory or more. Add yourself to your music.
This is not a set it and forget it oscillator. It’s an oscillator that demands to be tweaked, modulated and explored. It’s an oscillator that’s proudly analog and eschews all shortcuts. As such, it’s an oscillator that rewards you with sounds as boundless as your creativity.
The circuit is based in part on the Roland SH-101 / System100m design with several enhancements.
Manual GATE buttons
Three timing ranges: (1 second, 10second, 1minute A/D times)
Normal and inverted outputs
End of Decay (EOD) logic output
Cycle mode (which GATE logic control)
Retrig input (allows re-triggering of the envelope if source gate held high)
Dynamic control of the envelope output level (each ADSR is routed through a linear VCA and the control is normalled to +5V via the LEVEL jack. You can patch another control source like an LFO or VELOCITY level from a keyboard to this jack.