http://groups.yahoo.com/group/Sangean803/ Sangean 803 A / Radio Shack DX 440 Wed, 10 Feb 2010 12:24:07 GMT plextone http://groups.yahoo.com/group/Sangean803/message/3026 http://groups.yahoo.com/group/Sangean803/message/3026 Hello Larry, Thanks for your response! I am thinking of making a larger one going around the room, basically along where the ceiling meets the wall. And yes, Wed, 10 Feb 2010 08:17:09 GMT broadw http://groups.yahoo.com/group/Sangean803/message/3025 http://groups.yahoo.com/group/Sangean803/message/3025 Thanks for the info Larry. Unfortunately, I'm far from a whiz with electronic schematic diagrams. It is definitely the tuning knob/capacitance wire that is Wed, 10 Feb 2010 02:21:17 GMT Lawrence http://groups.yahoo.com/group/Sangean803/message/3024 http://groups.yahoo.com/group/Sangean803/message/3024 ... Larry: If my memory serves me correct, you posted that you calculated the Inductance of the Ferrits bar winding to be on the order of 6200 Micro-Henries ( Wed, 10 Feb 2010 01:39:44 GMT Andy - KU4XR http://groups.yahoo.com/group/Sangean803/message/3023 http://groups.yahoo.com/group/Sangean803/message/3023 Larry:   If my memory serves me correct, you posted that you calculated the Inductance of the Ferrits bar winding to be on the order of 6200 Micro-Henries ( Tue, 09 Feb 2010 19:56:59 GMT William Fisher http://groups.yahoo.com/group/Sangean803/message/3022 http://groups.yahoo.com/group/Sangean803/message/3022 Has it had batteries in it for those few years?   Bill WV5TX [Non-text portions of this message have been removed] Tue, 09 Feb 2010 19:17:19 GMT Ray http://groups.yahoo.com/group/Sangean803/message/3021 http://groups.yahoo.com/group/Sangean803/message/3021 ... Hello again; After checking on prices, I found that the DX-440 price I was asking was too high. so, from $100 to $50 plus shipping is the new going rate. Tue, 09 Feb 2010 16:29:40 GMT Lawrence http://groups.yahoo.com/group/Sangean803/message/3020 http://groups.yahoo.com/group/Sangean803/message/3020 Dear Andy, As always, thanks. Nice description of theory. Its actually consistent with some further reading I did on the matter - Voltage induction on Tue, 09 Feb 2010 15:48:23 GMT William Fisher http://groups.yahoo.com/group/Sangean803/message/3019 http://groups.yahoo.com/group/Sangean803/message/3019 Here is the link to MFJ's website showing the schematic of the MFJ-956 tuner: http://www.mfjenterprises.com/man/pdf/MFJ-956.pdf   Doesn't look like many wires Tue, 09 Feb 2010 12:44:20 GMT Lawrence http://groups.yahoo.com/group/Sangean803/message/3018 http://groups.yahoo.com/group/Sangean803/message/3018 I used to have an MFJ-956 - obviously, I used to remark how fantastically it worked on the Realistic DX-440 - but I tore it apart for parts. (A bad habit I've Tue, 09 Feb 2010 06:50:47 GMT broadw http://groups.yahoo.com/group/Sangean803/message/3017 http://groups.yahoo.com/group/Sangean803/message/3017 This is a new one to me, Jerry! Does anyone else have an idea of what this might be, or what could be causing it? Tue, 09 Feb 2010 06:47:19 GMT broadw http://groups.yahoo.com/group/Sangean803/message/3016 http://groups.yahoo.com/group/Sangean803/message/3016 Hello everyone! I have a MFJ-956 antenna tuner that I haven't used for a while. I hooked it to my radio the other day, and found something was off with its Tue, 09 Feb 2010 04:27:39 GMT Andy - KU4XR http://groups.yahoo.com/group/Sangean803/message/3015 http://groups.yahoo.com/group/Sangean803/message/3015 ... Maybe I'm the only one still 'arguing', but really the only way I can find out IF the coil on my ferrite booster-rod serves any purpose, is to put a Tue, 09 Feb 2010 04:27:17 GMT Lawrence http://groups.yahoo.com/group/Sangean803/message/3014 http://groups.yahoo.com/group/Sangean803/message/3014 I took my 'idiot's rod' - the long ferrite rod I wound - and decided to make direct electrical connection with it. But I did this connection through an 'outer Mon, 08 Feb 2010 20:49:16 GMT Lawrence http://groups.yahoo.com/group/Sangean803/message/3013 http://groups.yahoo.com/group/Sangean803/message/3013 Hi Allan, You're right (obviously). Sorry about that blunder. Maybe I'm the only one still 'arguing', but really the only way I can find out IF the coil on my Mon, 08 Feb 2010 20:16:48 GMT allannz2000 http://groups.yahoo.com/group/Sangean803/message/3012 http://groups.yahoo.com/group/Sangean803/message/3012 That is not inductive coupling, it is capacitive coupling. You would get the same result by taping the equivalent length of wire along the whip. Allan Watson