Pulsers

A-103 18dB Low Pass

18 dB low pass filter, TB-303 type (VCF6)

Doepfer · 8 HP · U3

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A-103 VCF6
18dB LOW PASS
CV1
CV2
CV3
Audio In
Audio Out
Frq.
CV2
CV3
Lev.
Res.

Panel · 40.6 × 128.5 mm Drag to explore →

Description

Doepfer's 18 dB per octave low pass filter, a modified transistor ladder that reproduces the Roland TB-303 filter. Controls, inputs and outputs are those of the A-120 and the A-102; only the sound differs.

Key features

  • 18 dB/octave low pass filter on a modified transistor ladder (VCF6), after the TB-303
  • Cutoff frequency set by hand (Frq.) and by three CV inputs, CV2 and CV3 with their attenuators
  • Audio input with its level control (Lev.)
  • Resonance (Res.) up to self-oscillation

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