Thanks for the inquiry. I've been seeing hits from the forum lately and really appreciate it.
The mono Pico Compressor has indeed sold out. We are in final tests now of a Stereo Pico Compressor and hope to have those boards available soon. We appear to have the final rev of the layout. Once we get rolling on those, at some later date, we hope to re-introduce the mono one. The stereo one will have most of the features of the mono Pico Compressor (no hard knee though) plus an auto attack-release circuit and analog/mechanical GR meter driver. It will also have fully-balanced I/O with relay bypass. Roger Foote over at Prodigy-Pro is the designer and will be making the boards for KA to sell. I'm pretty sure that the newer mono one will also have balanced I/O. I've got a proto on my bench now crying for attention.
I also now have the THAT340 which are (2) NPN and (2) PNP. The pricing for them is the same as the 300/320. (I want to try J Haible's SSM2040 clone with the 340s.)
The GR meter are $6.50 each; on qty >10 I could sell them for $5 each. Please note that the meters no longer have the "VU" function of the original but they're great for most any CV display. The schematic is attached. The gain setting can produce most any negative-going dB/V or V/Oct. For positive CVs an inverter would be required.
