|
Title: RF Mods AF67 Post by: flintstone mop on December 09, 2007, 10:26:08 PM Hello everyone
Happy Winter time Would anybody have a link for mods to the Elmac AF67?? I HAD some sheets to modify the PA tank circuit. Some bands are low power and 80M the darn thing tunes up on a harmonic that the linear doesn't like. I can see "the extra frequency" in the 'scope pattern. The PA tune starts towards another dip at full CW and the final output starts to clean up. Full CW is max capacitance.....(dumb guess) remove some windings from the 80M tank coil? Thanksss..............Google is not too friendly on this one. Anything on the AMFONE archives? Fred Title: Re: RF Mods AF67 Post by: K3ZS on December 10, 2007, 12:03:03 PM http://www.qsl.net/n9bor/MultiMods.htm
Also do a search on this board, I had questions a while back and received a lot of good advice. 73 Bob Title: Re: RF Mods AF67 Post by: K9FH on December 10, 2007, 05:28:42 PM There's also a Multi-Elmac Yahoo group at http://groups.yahoo.com/group/multi_elmac/ (http://groups.yahoo.com/group/multi_elmac/) AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
|