"Ron Hardin" wrote in message
...


I'm interested in building an 8-input ANC-4, in effect.

This may or may not be of interest but here it is anyway. Doug Demaw did
construction articles in the May 96 and July 97(improved version) issues of
CQ for a "QRN Squelcher". He did a similar article in Monitoring Times but
omitted the TR switch He compares this unit as an equal to the ANC4.
I ordered the circuit boards for the project from Far circuits
(www.farcuits.net) but haven't started the project yet, saving it until I
finish some other already started projects. RM~

PS, Far has the boards listed in the Audio section of their online catalog
and they will supply a copy of the CQ article for an extra $1.50.