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fastdave · 18th Jan 2019, 6:13 pm

Thanks livewire - now I am totally confused - The circuit I picked up had a 200pf cap in series with a 20H choke which was in parallel with a 400ohm and a 400pf cap - this was the radio end - now Trevor is talking about a 6 inch wire? all I want to do is inject an RF signal after I get the IF right - as to the whistles, they only occur at certain stages in the IF adjustment - I always return these to the original position within half a turn or so.
At one point, I got a faint radio station, but lost it without any good means of tuning the IF.

18th Jan 2019, 6:13 pm	#13
fastdave Retired Dormant Member Join Date: Nov 2015 Location: Leven, Fife, UK. Posts: 6	Re: Help with alignment of a Sobell 515P Thanks livewire - now I am totally confused - The circuit I picked up had a 200pf cap in series with a 20H choke which was in parallel with a 400ohm and a 400pf cap - this was the radio end - now Trevor is talking about a 6 inch wire? all I want to do is inject an RF signal after I get the IF right - as to the whistles, they only occur at certain stages in the IF adjustment - I always return these to the original position within half a turn or so. At one point, I got a faint radio station, but lost it without any good means of tuning the IF.