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46-420 IF Transformer Issue
#2

Hello Rich and welcome to the Phorum. First, I love puns and you opened with two, bravo! Next, your IF transformer sounds like an open primary winding. Removing them is usually pretty simple but reinstalling is tricky if you don't mark the can position on the chassis and the relative position of the coil form inside the can. After you get it out use an ohmmeter to determine which winding is the primary and pray you can find a broken or loose wire dangling near a terminal. Sometimes all that's needed is to reflow solder to the terminals to reestablish the connection. If none of this solves the problem then the open is internal to the winding. On rare occasions the wire can be unwound and the break will be a few turns in. Others have replaced the entire can with one from a donor radio but it must be one that has the same resonant frequency. Work slowly and carefully, the wires are delicate. GL


Messages In This Thread
46-420 IF Transformer Issue - by WXmanRich - 05-02-2023, 09:44 PM
RE: 46-420 IF Transformer Issue - by RodB - 05-03-2023, 10:28 AM
RE: 46-420 IF Transformer Issue - by WXmanRich - 05-03-2023, 06:08 PM
RE: 46-420 IF Transformer Issue - by falcon123 - 06-01-2023, 06:25 AM



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