geji module

蚰蜒 (geji in Japanese or yóuyán in Chinese) translates to house centipede. I chose the name because this module had 6 - 8 inputs and was mono when I started to design it. So many inputs reminded me of a centipede. I looked up the Japanese translation and I really liked geji, or ゲジ. A friend of mine persuaded me to make it stereo and sacrifice a few input channels instead. The name remained though.

The geji module is a 4 input stereo mixer with line output and a high quality headphone amplifier (TPA6120A2).

If you want one, send me an email to aebsor (monkey spiral) gmail dot com.

inputs

Every channel has volume and pan control. Both, line output as well as headphone output have a master volume control knob. That’s it.

panel desing

I hand-etched the panel from a one-sided photo PCB. To give it some character, I treated is with liver of sulfur afterwards and sealed it from further oxidation with a clear acrylic cover. Unfortunately, the koseidai logo is antique. The next revision wil get an update.