Re: Alignment Instructions for the Sony SRF-59 Analog Radio Family
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Hi Mark,
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The SRF-59's loopstick coil (the shorter one, usually secured with wax) is indeed the component most likely to be out of alignment, but the 1400 kHz trimming capacitor (one of the four trimmers on the tuning capacitor) occasionally will be far out of adjustment also. This occured in about 25% of the factory-aligned units, as I recall. In early 2008 the SRF-59 alignment quirks could actually be traced to serial number groups, so that certain batches of SRF-59's from the same factory (and the same store) had the same dreadful performance. Unfortunately the SRF-59 alignment does require steady nerves and good eyesight, and may not be suitable for all owners to perform. The radio is an amazing DXing bargain for the money, but user-friendly disassembly is not its strong point. 73, Gary
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From: R. Mark Barnett <orgelkraft@...> To: ultralightdx <ultralightdx@...> Sent: Sun, Jun 26, 2011 2:16 pm Subject: Re: [ultralightdx] Re: Alignment Instructions for the Sony SRF-59 Analog Radio Family If I am reading and digesting this correctly, the majority of these radios ONLY need the coil tweaked a bit... All of mine are stock and seem to work well.... and the full band is covered. I don't have a signal generator around anymore, but as stated, using a weak station works just as well. I am almost convinced to crack mine open... I have had a stroke, so it makes me think twice about attempting it. Tremors make fine re-assembly much harder. :-( Mark Barnett N8PGV GET SWABBED!!! Save a Life by becoming a bone marrow donor. A child near YOU is DYING for a transplant! http://www.dkmsamericas.org/ Organize a Bone Marrow Donor Drive in YOUR Town or Church!
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