Gain Switch Multi: User Guide - Easy Access to Overdrive on AJH Ladder Filter & Cascaded VCA

Here's how to use the Gain Switch Multi module with the Transistor Ladder Filter, Discrete Cascaded VCA, and Gemini 2412 VCF. With the Ladder Filter and VCA it allows convenient access to the gain jumpers on the back of the module, so that you can simply turn on and off the increased gain level feature, and add musical overdrive to your sound - this simulates the old Minimoog trick of connecting the headphone out put to the audio input to add some desirable distortion to leads etc. With the Gemini, the module will connect to it's two jumpers which determine the resonance available on each of it's two filters - the normal SEM-style level of resonance, or a much higher level, allowing either or both of the filters to self-oscillate.
Also there's a passive 6-way multiple to further make use of it's tiny 2hp Eurorack footprint.

Index:
00:00 Start
00:25 Overview
01:05 Installation guide
04:58 Gain Switch in use
10:38 With the Gemini 2412
15:16 Example usage

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Tags: MiniMod synth modularsynth analog analogue synths eurorack modular how to instructions and guide user guide

[mxmx]

Got quite a few AJH modules in my collections. The only ones I keep now are the VCOs, Filters, and VCAs. The last two types can be used as mixer and overdriving signals. They are really enjoyable and make any signals run through pleasant.

[MartinDoudoroffLLC]

Q: If I enable self-oscillation on the Gemini, obviously, I gain self-oscillation and the resonance knob reacts differently and I have to keep that reined in if I don’t want self-oscillation. But do I *lose* anything (timbrally/functionally) by having self-oscillation enabled?

[JuanAMatos-zxub]

Is it possible to connect the 2 cables to 2 filters instead of the VCA?