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kthorley Guest
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Posted: Fri Aug 11, 2006 2:56 am Post subject: Radio and electronics cookbook |
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I have just built the Colt 80m receiver from the book. It worked ok when i tested the VFO and Mixer, But when I built the BFO mixer it makes a high pitched tone noise I can hear some mose code and a radio station, but can not listen for long has the high pitched tone noise is to much for the ears. I have tuned the inductor but there is still a high pitched tone noise. It says in the book a high pitched hissing sound should be heard but it is more like a high pitched tone noise I can hear some low hissing noise. Thanks Karl |
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