Instruo - Tš-L


The Tš-L is an analog oscillator with triangle core. Despite its small size, the module can dish out big time! Besides sine and triangle waves, the Tš-L generates folded waves and complex pulses. Thanks to CV, FM and soft sync inputs, you can create very lively sound. In addition, a sub oscillator emitting square waves was implemented. By combining several waves, complex timbres can be generated with just one Tš-L.



The Tš-L offers coarse and fine tune potentiometers as well as an FM input with switchable characteristics (linear / exponential). A 1V / octave socket is available for playing the circuit. Furthermore, a soft sync input was implemented. – So far, a pretty common VCO. What sets the Tš-L apart from ordinary oscillators is its sound repertoire. The module generates the following waveforms:

  • Sine
  • Triangle
  • Square – Its frequency is one or two octaves below the other waveforms.
  • Two pulse waves with differing shapes, which can be mixed. This can happen manually as well as via a CV input with bipolar attenuator.
  • Folded sine wave with editable symmetry and voltage control.

1V / octave input
FM input
Soft sync input
CV input for mixing pulses and wave folding
Five audio outputs (sine, triangle, square, variable pulse, wave folder)


3U Eurorack module, 6 HP wide, 42 mm in depth
Power consumption: 80 mA at +12 V and 75 mA at -12 V

0.15 kg
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€ 19% VAT excl. €231.09 € 19% VAT incl. €275.00
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