Trogotronic 277M

Overview

The 277M Eurorack module is a nice sounding dual tube VCA. The tubes provide additional harmonics from slight to brutal distortion and produce a nice compression in the low range. Amplitude and overdrive can be voltage controlled and set manually quite precisely.

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Details

Amplitude as well as overdrive of each channel can be set with potentiometers and/or control voltages. the overdrive has a wide sound range from creating slight harmonics to nasty vacuum tube distortion.

The module is very adequate for processing a mono signal by both channels simultaneously, after having split the signal before of course. This will add a very interesting stereo image to the resulting dual-mono signal when panned in the stereo field, as there always slight differences between the tube VCAs.

Using phase-inverted LFOs you can create voltage controlled pannings. You can even pan the distortion dynamically when you modulate the overdrive parameter with two LFOs running in opposite directions.

High-voltage current used for the tubes is provided thru an external power supply in order not to put a strain on your Eurorack power supply. The rest of the VCA circuitry is powered by the internal Eurorack power supply, though.

connectors

per channel: audio input, audio output, CV input for overdrive and CV input for amplitude.

dimensions

3U Eurorack module, 15HP wide, ~57mm deep.
current draw: max. 30mA @ +12V and max. 5mA @ -12V
The module requires an additional, external 12AC power supply.

Weight
1 kg
Article Number
TG277

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