Chris List had the idea to use this IC for a synthesizer module.
National Semiconductor's LM1036 was designed for use as a volume,
pan, and tone control chip for consumer electronics. The chip can
be used to pan a single input to two outputs or to xfade two
inputs signals to a single output.
These circuits expand on those in National's data sheet by
providing additional summing and bus circuitry optimized for
a +/-15v power supply, 0 to 5v CV synth environment (however
you’ll have attenuverters and an initial control on each CV input).
This is an PCB for Chris List’s Audio Processor Circuit which
can be found here:.
I implemented the loudness switch. We all know that from our HiFi gear...
I already manufactured a prototype PCB. If there is enough interest i will do a large batch run (end of 2008?).