01-10-2026, 01:38 PM
Hi MrFixr55,
Yes #12 is in my radio and I did change the 1400 PF cap. I do receive most stations where they should be. I get 740 and 1180 spot on but 800 comes in about 820. Station 800 has more noise than 740 although both in Toronto. Alignment instructions say #11 is low frequency for police band and #12 is low frequency for AM. I do receive AM stations between 1.5 mhz and 1700 on the police band but above that I get an single unknown AM station from there to the end of the dial. I have notice pins 3 & 4 of the 75 tube go the secondary of the 2nd IF and on to the volume control to ground. Would this effect sensitivity of the radio? The volume control is 2 meg where it should be 350K. All 4 switches are open in the broadcast band and shorted in the police band.
Dan
Yes #12 is in my radio and I did change the 1400 PF cap. I do receive most stations where they should be. I get 740 and 1180 spot on but 800 comes in about 820. Station 800 has more noise than 740 although both in Toronto. Alignment instructions say #11 is low frequency for police band and #12 is low frequency for AM. I do receive AM stations between 1.5 mhz and 1700 on the police band but above that I get an single unknown AM station from there to the end of the dial. I have notice pins 3 & 4 of the 75 tube go the secondary of the 2nd IF and on to the volume control to ground. Would this effect sensitivity of the radio? The volume control is 2 meg where it should be 350K. All 4 switches are open in the broadcast band and shorted in the police band.
Dan
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