Panel and PCB for a module which I have designed and printed. I call it CAV (Cross-Attenu-Verter) for lack of a better name. I believe It is a rather useful utility to module.

Their are 2 units on the module. They behave as so: When a signal is inserted into only the first input you have an active attenuator. when a signal is inserted into the second it attenuverts the signal. When an input signal is applied to both inputs, it crossfades them!

There is an option to normal the output of the first unit into the attenuverting input of the second.

Inputs are DC coupled and with minimized ripple, so it'll do both CV and signals.

The panel is 6 HP and made of PCB material.

Ideas about what you could do:

• mix 3 waveform's to create an output wave of equal amplitude

• or a mixer for 2 audio signals with output attenuation.

• manually cross-fade between 2 signals (twice)

• active 1 to 2 mult with the option to invert either outputs

• offset a signal in a pinch

• get creative!

Parts List (all through hole):

This revision of PCB design has a slight issue with component placement, so I recommend a 2x5 pin header rather than IDC to avoid overlap. Both will absolutely work. There is a line which indicates negative.

One of the R labels goes off the side, The value is the same as the rest (100k).

To normal the output of unit 1 to the attenuverting input of unit 2 simply solder a bit of wire or slide switch on SW1.

Please get in touch for more information. Feedback is encouraged too.