Attenuverter (inverted)

Dual attenuverter with offset

Classic attenuverter based on 07x opamps. Attenuating, inverting, adding or removing DC voltage.
It can be used as buffered mult, as input B is normaled to input A.
Front panel is double sided, descriptions printed on the each side are reversed, so module can be used with jacks on bottom or on top depending on which side panel is facing.
Each channel has own LED showing current output voltage. Pink is negative, green is positive.

Starting from v1.1 the module has own voltage regulators and it is immune to voltage fluctuations of system's PSU.

Version 1.2 introduces amplification option (about 200% of the original signal) via switches on the back of the module.

Version 1.3 adds mixing function. The mix of channels A and B will be availible on the channel A output, but only when channel B output is not in use. Inserting jack to channel B output will break the mix and channels A and B will work independently.