Description
The High-Pass Transistor Ladder VCF is a Moog-inspired Voltage Controlled High-Pass Filter for Eurorack systems. It is based on the original High Pass Filter circuit by EFM (Electronics For Music), and further refined using the comments and suggestions from Kristian Blasol in his DIY Modular in a Week series.
Specifications
| Format | Eurorack |
| Width | 4HP |
| Filter type | Voltage Controlled High-Pass Transistor Ladder (VCF) |
| CV control | Cutoff frequency |
| Jack connectors | Cliff CL1384 (3.5mm) |
| Power | Eurorack standard +/-12V |
| Version | 1.0 |
References
The circuit is based on the High Pass Filter by EFM (Electronics For Music), with modifications inspired by Kristian Blasol’s work on the Moog Highpass Transistor Ladder Filter.








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