ALM Busy Circuits

Notes: Great value from this compact filter module. The Pip Filter is a 12dB/oct resonant design with built-in normalled VCA and a trigger input for pinging. Lots of functionality and creative potential packed into 4 HP.

Supplier's Notes:
Compact Low Pass Filter and VCA

The 'Pip Filter' is a compact 4HP voltage controlled 2 pole low-pass filter with resonance, a 'pingable' trigger input and built in VCA.

Filter cutoff is controlled via both knob control and dual CV inputs with a built in attenuverter.

Resonance is manually controlled and will reach into self oscillation with rough V/Oct tracking.

A trigger input allows the filter to be pinged for percussive plucked type sounds. Finally, a built in VCA (normalled open) allows for additional independent amplitude control of the filtered signal.


Technical Specifications

Size: 4HP
Power: +12V 25mA / -12V 25mA
Depth: 32mm (approx)

Notes: Compact Analogue LFO & VCO

The 'Pip LFO' is a compact 4HP all analogue low frequency oscillator with a wide frequency range, voltage control, numerous outputs, reset input and a VCO mode.

LFO speed is set via a manual control and voltage control input. There is a unipolar square wave output along with both bipolar and uni-polar triangle, saw and sine waveform outputs.

When VCO mode is activated, the frequency jumps to audio range and will track V/Oct for approx 5 octaves. A reset input allows the LFO waveform cycle to be reset and produces hard sync functionality in VCO mode.


Technical Specifications

Size: 4HP
Power: +12V 40mA / -12V 20mA
Depth: 32mm (approx)