Angle Grinder from Schlappi is an 18hp quadrature sine wave oscillator, filter, and distortion.
- Quadrature Sine wave VCO with four phase related outputs: 0°, 90°, 180°, 270°
- HIGH range from 10Hz to over 20kHz
- LOW range from 0.3Hz to over 500Hz
- Tracks 4+ octaves of volts per octave at the V/OCT input
- FM1 is selectable linear or exponential FM via jumper on back
- FM2 is additional exponential V/OCT jack
- With no input GRIND section provides voltage controlled harmonic content
- With input GRIND section compares each phase against GRIND IN signal
- Each slider subtracts the compared signal from the input signal, creating complex waveshapes
- When GRIND is fed into the SPIN section the outputs become a state variable filter
- DAMPING counteracts the oscillation and allows an external signal through
- When filtering the four phase related outputs are: LOW PASS, BAND PASS, HIGH PASS, and INVERTED BAND PASS
- When filtering the GRIND section is a nonlinear feedback network for harsh and unpredictable timbres
- The four phase feedback paths can be separately voltage controlled
- The INJECT jack can be used as a second input for either audio or CV, bypassing GRIND
- All analog OTA based design
- 18 HP
- Power requirements :+12V 81mA, -12V 78mA
Video: https://youtu.be/1IOWKF97WYY
Product Specs
- Item Number: 16666
- Make: Schlappi Engineering
- Model: Angle Grinder - Silver
- Condition: Brand New
- Finish: Silver
- Categories: keyboards-and-synths ⇒ eurorack
- Function: Filter Oscillator Waveshaper Distortion
- Made In: United States
- MPN: SE_Ang_Grind_Silver
- Modular Grid: Eurorack ⓘ ＋
- Dimensions*: 18 HP 27 mm deep
- Power*: 81 mA +12V 78 mA -12V 0 mA 5V
* User contributed details