Waveforms are recorded without filters or any other effect. Just a VCA & ADSR:

VCO

The VCO is based on a relaxation oscillator. The integration/relaxation circuit is build around discrete high quality components. Transistors/current sink with excellent log conformance, zero temperature dependence capacitors and very fast JFETs with superlow Gate capacity for fast switching. This delivers classic sounds over 6 octaves with 0 cents deviation (8 octaves within +-2cents). The shape of the sinewave output can be readjusted with trimmers in shape and symmetry, giving even more possibilities in timbre.
A selected passive temperature compensation circuit takes care of long term frequency stability in a reliable manner, 4h drift measurement = 0 cent deviation.

All I/O signals are accessible on an pinheader for prepatching when built in.

Lowest note is factory trimmed to C0 (16.35Hz)

Tunable parameters:

• TUNE COARSE
• TUNE FINE
• PULSEWIDTH (lets you vary the pulsewidth of the Squarewave output from 10 to 90% dutycycle)

Inputs:

• FM EXP (exponential FM input: v/oct)
• FM LIN (linear FM input)
• PW CV
• SYNC

Outputs:

• SAW
• TRI
• SQR (with the set pulswidth dutycycle)
• SINE

Power:

• +12V 35mA / -12V 33mA

Dimensions:

• Width: 12TE (60.6mm)
• Depth: 13mm