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I would give Paul a call....................he should have them in stock.
Tell him that I sent you. I could tell you that he doesn't have manuals available for that radio. If you ever get down to the Chicago area (Mount Prospect), if you stop in, I can do the mod for you free of charge. Pete KE9OA J999w wrote in message ... Is yours a newer unit, or an older one? Some of the older units had a fixed 270uH inductor as a tuning element in the 1st 455kHz I.F. stage. This is in parallel with a 470pF chip cap. Sometimes, the tolerances of that fixed inductor would cause a loss in sensitivity. If this is the case, it can be replaced with a variable inductor. I did that with mine, and the NF improved quite a bit, to the point of having an MDS of .1uV down to 200kHz, degrading to .3uV at 100kHz. Another thing that helps this radio below 500kHz quite a bit is having a good ground. I use a power supply that has a 3 wire cord, and having that ground connection improves the low end signals by around 3 S-units. Pete This sounds great. Are there service manuals available and do you have a Mouser number or something of the coil used??? jw wb9uai |
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