"Ron Hardin" wrote in message
...

What other ones are out there, I don't know.

Take a look at http://www.bhi-ltd.co.uk/ . I have no idea how they compare
with the ones you know. There are some impressive demos. The little
NEDSP1061-KBD Noise Eliminating PCB Module is 36.2 x 27.4 mm (about 1-7/16"
x 1-1/16") and cab fit inside many a receiver. I don't have one - price is a
deterrent!

Tom