I'm sure many subscribers will remember the two-tube superhet circuit described in QST and several Handbook editions back in the 40s. Essentially a dual triode (6SN7, 6C8, 6F8, etc.) regenerative detector/single-stage audio amp setup preceded by a 6K8 (triode hexode) converter. The "IF" frequency was around 1700 kc. Big advantage here over more simple regen designs was the isolation from antenna effects provided by the converter stage. Built one of these for 80M back in the 50s when I was a kid. Worked quite well as I remember.
Dennis D. W7QHO Glendale, CA --- StripMime Report -- processed MIME parts --- multipart/alternative text/plain (text body -- kept) text/html The reason this message is shown is because the post was in HTML or had an attachment. Attachments are not allowed. To learn how to post in Plain-Text go to: http://www.expita.com/nomime.html ---
