04-27-2026, 01:08 PM
Hello Philco members. I am in the process of checking the IF transformers on my 37-640. Since I have never worked on an IF transformer before, I have a couple of questions. I have attached a photo of the first one I have taken apart( it is the one with a grid cap wire). I see no broken wires and when I test with the ohm meter, the top coil reads 20.9 ohms and the bottom coil reads 11.6 ohms. Does that seem ok? If this is ok, I will reassemble and take apart the other IF transformer because it may be the one that I originally saw a broken wire some months ago when I first started working on this chassis. Thanks john




