Active Attenuator / Amplifier 0..N

Motivation

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

Implementation

Schematic

Description:

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

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Calibration

• None

Top

Building hints

• None

Special parts

• None

Download

Attenuator / Amplifier 0..N control board documentation download
Attenuator / Amplifier 0..N control board Gerber files download
Attenuator / Amplifier 0..N *.fpd file