The Tromoso by Bastl instruments is a tripartite combination of three useful utility modules inspired by mid-90s analog distortion boxes: a VCO, comparator, and sample & hold. The module’s internal normalization ensures double usage as an analog sample rate reducer.
Tromoso’s VCA tracks at 1V/Oct with the FM Attenuator fully open, and each section is capable of functioning independently.
This version of the Tromso features an ALUMINUM faceplate.
Triangle core VCO
Exponential FM input with Attenuator Knob
Tracks volt per octave over about 5 octaves when attenuator is fully open
Switch to change range of the VCO – high= 15Hz-45kHz, low=50s – 50Hz
VCO output is normalised to Comparator Input thus Comparator Output creates pulse waveform for the VCO (Threshold = PWM)
Comparator has Threshold Knob, CV Input for Threshold, Input and Output with indication LED
S&H section has gate input, input and output
Switch to select mode: Sample & Hold (samples at rising gate and then holds) or Track & Hold (at high gate tracks, at low gate holds)