4 channel mixer and multiples
The CP3 module is a 4 x 1 mixer with positive and negative outputs and a maximum gain of two. This mixer can combine both AC and/or DC voltages. The module has a switch which, in the ON position, allows unwanted spikes to be removed from the waveforms. There is also a passive multiple
http://www.aion-modular.com/cp3.html
This Module is currently available.
$274