tag:blogger.com,1999:blog-3380839830287420877.post8313015341994967830..comments2024-03-26T07:29:36.610-07:00Comments on VE7SL - Steve - Amateur Radio Blog: The 2018 Novice Rig Roundup (NRR)Steve McDonaldhttp://www.blogger.com/profile/06229640265009249231noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-3380839830287420877.post-44602250754935916232018-02-15T17:52:06.176-08:002018-02-15T17:52:06.176-08:00The dilemma resulting from trying to mate the VF-1...The dilemma resulting from trying to mate the VF-1 VFO to the Drake 2NT as described above has been solved. The problem I was having was on 80m only, where the VF-1 runs on 160m. The backwave was so strong that it would still key the final amplifier to almost full power when unkeyed, between keying elements. <br /><br />It suddenly dawned on me this morning that the VF-1's output on 160 is a good 10V so perhaps just lowering that level would stop the backwave but still give the Drake's buffer stage enough drive. It turned out that a good old 47K in series with the hot lead of the VFO produced the desired outcome, so everything is good to go on all bands, with the VF-1 ... now if I could only do something about that initial 50Hz drift at each startup on the 40m oscillator!<br />Steve McDonaldhttps://www.blogger.com/profile/06229640265009249231noreply@blogger.com