While working with modulars I have had some modules lacking input attenuator or output volume. To cure that I have build this module. It is usable as active attenuator and / or amplifier. The attenuation or amplification is determined by one resistor per channel, so you can easily adjust the attenuation or amplification to your needs.

Specs and features

• Three independent active attenuator or amplifier
• Attenuation / amplification adjusted with one resistor.
• Runs on +/-12V and +/-15V
• Power consumption below 20mA each rail

The documentation and the Gerber files for download can be found in my website.

The attenuation or amplification is determined by one resistor per Channel (R2, R7, R12)