The Instruō Tš-L is a fully analog voltage-controlled oscillator with a wide range of features in a very compact size.

Its triangle core circuitry allows for extremely consistent waveforms across a broad frequency range. The triangle foundation is used to generate its sine waveform, which maintains consistent shape and amplitude throughout the Tš-L’s wide range. The outputs include simultaneous Square/Sub, Triangle, and Sine waveforms, along with an additional voltage-controllable wavefolder and complex PWM waveshaper.

Tš-L includes every feature needed to perform powerfully as a rich, ultra-compact audio source, as well as functioning equally well as a versatile modulation source.

Tš-L | tiː-əz-ɛl | proverb (siri) “this sauce later rocks”

Size
6HP
Depth: 42mm

Power
+12V: 60mA
-12V: 40mA

Specifications
Triangle core analog oscillator
1V/octave, Coarse and Fine pitch controls
Oscillator soft sync
FM input with attenuator and selectable linear or exponential ranges
Sine
Triangle
Subsquare (1 or 2 octaves below fundamental)
PWM – variable split triangle/double pulse square, CV controllable
Wavefolder with symmetry control and CV over fold depth