Available as an assembled Module and as a DIY project.
This Module is currently available.
Lowpass/Highpass/Notch filter
The Hampshire Electronics Dual VCF is a 100% analogue voltage-controlled filter in the popular Eurorack format.
The VCF features two completely independent filters, a high pass (6db) and low pass (12db).
These filters can be used completely independently or chained to produce highly controllable band-pass and notch filters, with controllable Q and filter cut-off.
The filters are of the state-variable style, inspired by the classic filters on the MS-20 synth of the late 1970s. This filter style is rightly regarded as a classic.
The LP filter section self-oscillates at high resonance settings and, due to its high performing matching transistor pairs, can also be used as a sine-wave voltage-controlled oscillator (VCO).
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