Erica Synths Swamp PCBs, Panel and 1100CK2 IC
Erica Synths Swamp PCBs, Panel and 1100CK2 IC

Erica Synths Swamp PCBs, Panel and 1100CK2 IC

Your Price:$39.99
In Stock
Part Number:ES-SWAMP-PCB
Please note: this includes the PCBs, Panel and K1100CK2 IC only. Please see the bill of materials link below to source the rest of the parts needed.
The SWAMP is a random CV and audio generator inspired by the famous Wiard Wogglebug module; it’s often the heart of self-generating patches and brings controllable randomness to your modular system.



  • Three random audio frequency outputs
  • External audio input routed to ring modulator
  • Three random CV outputs
  • Clock input and output to sync the module to your modular system
  • CV control over internal clock for even more extreme randomness
  • Skiff-friendly design


In the SWAMP module, Erica Synths introduced numerous modifications and improvements to extend the potentiometer range, added an audio input, which, when connected, replaces the internal Tone oscillator, replaced the expensive dual vactrol, built S&H circuit around the made in Riga S&H IC AS1100CK2, added audio waveform selection switches, CV output configuration jumpers and much more.

See the visual BOM for a complete list of the parts needed. Please note that we have made some slight changes from the original Erica Synths Github BOM for various reasons.

This is a comparably complex DIY project for experienced builders. We do not recommend this for beginners and ones without proper soldering and testing equipment.

Technical specifications:


Audio output amplitude•10Vptp
CV output amplitude0-10V or -5V - +5V
Panel width14HP
Module depth35mm
Power consumption60mA (max)@+12V, 39mA@-12V

Download the bill of materials with Mouser numbers, the assembly guide and the schematic from the Github page. Use the .zip file, NOT the links to at the bottom of the page!

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