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Should not have to fudge anything. The top and bottom bands are good so
the Oscillator is good. The 5 mc band is off so there is a bad part connected to the band switch. Fix or replace. Fudging always makes more problems. I had an S-120 growing up http://image08.webshots.com/8/8/80/8...3yhLWvj_fs.jpg and later, S-38E for show. http://www.woulfeman.com/Radio%20Hallicrafters.jpg I was SWL long before I got around to the ham ticket. JB was the closest. After fussing with it for another two hours I started tracing the padders on each band. What I found was very curios. There was a rather original looking wire connected from the band 2 osc trimmer (coil lug 20, see schematic) to one of the antenna coils (tab O on the wafer switch). Why that was put there? I have not a clue. Once I disconnected the trimmer side of the wire the oscillator snapped back into alignment range. It tweaked in at both the 5Mc and 1.8Mc alignment points dead nuts on. I desoldered the switch side of the jumper (tab O). The joint looked rather factory and not owner installed. Curious. The Trimmer side (coil lug 20) was definitely messed with (short lead and burned insulation). Ham owned gear. It's like a box of chocolates. Ya never know what you will find. Thanks to all for the comments. They did help focus me on the band 2 circuit. Paul P. |
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