Re: Poor quality SRF59s - can they be aligned ?
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huelbe_garcia@...
Hi Gary,
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thank you for your prompt reply your offer to make alignment for other ULR-fans. In your experience, is it enough to change the position of the smaller coil? Or is it needed to also work at the bigger coil? I found the smaller coil very easy to move around. However, I have no idea how to move the bigger coil over the ferrite core. I think some soldering work is necessary. (just to make clear to all friends in this list: SRF59s have one ferrite rod with two coils - the one to the left has almost two-times more wire than the one to the right. Bryant and Gary, however, concluded it is electrically one coil with taps.) Huelbe P.S.: I really apologize if my english does not 'sound' well. As I have never lived abroad, perhaps my text may have expressions and grammar constructions that are not-polite, rude or uncorteous. This is not intended. :)
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From: D1028Gary@aol.com Sent: Friday, March 28, 2008 12:34 PM Subject: Re: [ultralightdx] Poor quality SRF59s - can they be aligned ? To Dave Kenny, Huelbe Garcia and Others, Concerning the Chinese factory alignments of the recent SRF-59 units, it is typically not accurate, and new units are usually not as sensitive as possible. After performing 38 SRF-59 alignments for others in North America, I have discovered that the smaller coil on the loopstick is almost never in the optimum position to peak a 600 kHz signal, and this simple adjustment can make a huge difference in SRF-59 sensitivity. 73, Gary DeBock Original "Ultra-fanatic"
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