On Wed, 2006-06-28 at 15:09 -0700, Ian Wilson wrote: > What was the original mixer in the 75A4 that was replaced by the W6ZO > circuit? > > Thanks, > > --ian K3IMW 6BA7 noise generator. Two of them. One for each conversion. -- 73, Jerry, K0CQ, Technical Advisor to the CRA All content copyright Dr. Gerald N. Johnson, electrical engineer