Hi, I'm in the process of building K1 #3224 and all was going well until this evening. I'm at the point in Chap. 7 Alignment and Test, Part 1 "Band-Pass Filter Alignment" (pg. 40). I was able to align B1 (40 meters) but when I attempted to start B2 (30 meters) I realized that the relays were not switching and I could still hear the 40 meter signals although the frequency display showed the 30 meter frequency. Everything else up to this point seems to be working fine but no relays are switching; not on power up or when I try to change bands. All the resistance checks I did according to the manual were right on. I checked for misplaced components, shorts, unsoldered components, components in backwards or in the wrong place on the filter board but everything checks out OK. I measured the voltages on U1 on the filter board and got the following: Pin1 0v Pin2 0v Pin3 0.85v Pin 4 5.94v Pin 5-12 0v Pin 13 5.5v Pin 14 5.9v Pin 15 2.2v Pin 16 2.1v Pin 17-18 0v I was powering the radio with 12.9 volts. According to the DC voltage table on pg 7 Appendix E the only voltages that are off are the voltages on pins 15 and 16. According to the filter board schematic in Appendix B these two pins connect to Z1 the resonator. Any ideas? Regards, Rich Crispi K1YRW
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