Description

GATS is a 12hp grainy reverb and filter with sample and hold control. With nothing plugged into the sample and hold input, the circuit uses the audio signal as its source, while plugging something into sample & hold input will override this. There is also a direct sample & hold output which you can use regardless of what source is being used. This makes it possible to use the module as a standalone sample & hold if desired without using the filter or the reverb.

The input signal first hits the reverb circuit and there is a switch for the reverb to be fully wet or a 50-50 blend of dry/wet. The signal then goes through the filter and the CV knob controls how much of the sample & hold will affect the filter frequency. The filter has both a frequency control and resonance (q) control and is a modified version of the bandpass filter in the legendary WASP synthesizer.

The sample & hold has an onboard clock which can be overridden by plugging in a clock into the Gate input. The feedback switch lets you chose between either pre or post filter feedback which both have their own flavour. Post filter feedback will be influenced by the filter modulation and position of the filter knobs.

Lastly there is an offset knob for the S&H output which when set  at12 o’clock presents no offset at all, going anti clockwise it presents more and more negative offset and going clockwise it presents more and more positive offset.

Note: this is a Panel & PCB set only – you must source the rest of the parts yourself! 

All SMD parts are already pre-soldered

GATS – Build Document & BOM