Bastl Instruments

Bastl Instruments Skis DIY Kit

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$79.00

Out of Stock
Dual decay + VCA

In the front of every ski there is a curve similar to a decay envelope. Skis module has two channels A and B and each of them consists of a decay envelope with knob control and a VCA. There is a TRIGGER input to trigger the envelope, a buffered envelope output which is normalized to the CV input of the VCA. Then there is SIGNAL IN and OUT of the VCA.

There is also a CRUNCH switch which activates a special mosfet lo-fi VCA circuit inspired by designs of Standa Filip. This adds a slight crunchy character which changes with the decay of the envelope.

A typical application of Skis is to take two signals (noises for example) and generate drum sounds with adjustable DECAY from them with a TRIGGER signal. However, you can also use the two VCAs and two DECAY envelopes independently.

Before starting this kit, prepare the following tools: soldering iron (15-20W will do), multi-meter, protective eyewear, flush cutters, no.2 hex screwdriver or allen key, phillips screwdriver, and some coffee. Go through the build guide under the links section below, and make sure that you understand all the steps.

We suggest that you work in a clean and well-lit environment to avoid accidents or losing any of the small components.

IMPORTANT!

If you have never soldered before, check out this great tutorial first.

Dual decay + VCAIn the front of every ski there is a curve similar to a decay envelope. Skis module has two channels A and B and each of them...

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Width: 5HP
Max Depth: 35mm
Power: 30mA@ +12V , 20mA@ -12V , 0mA@ +5V

Features

  • Dual decay envelope with adjustable decay time (trigger input, CV output)
  • Dual VCA (signal IN, signal OUT, CV IN is normalized to CV output of decay envelope)
  • Crunch feature inspired by circuits of Standa Filip
  • Jumpers for changing the decay envelope to release envelope (VCA is on full while there is a gate signal and than it decays)
  • Jumpers for enabling the decay knob to completely mute the decay envelope
  • Jumpers for selecting weird filtering of the output signal (also inspired by Standa Filip)
  • Front panel from oak wood, handmade custom knobs
  • Handmade in Brno, Czech Republic

Videos