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47-1227 Output transformer
#1

I'm working on my first radio a Philco 47-1227 that was my bosses radio that he used when he was in high school. Unfortunately, I have no idea what killed the radio but my boss tells me there was dripping wax everywhere. The output transformer 32-8274 looks like it got very hot. I know nothing about transformer terminology but on one side there are three plastic coated wires a blue one, and orange one in the center, and a white one. Between the blue and orange leads I get a reading of 126Ohms and the schematic says I should get 275ohms, between the orange and white leads I get a reading of 142 ohms while the schematic says I should get 300. On the other side of the transformer are just two wires, one going to ground with no insulation and the other wire is lacquer coated and in a loose insulation sleeve. I get a reading of 0.47 ohms between these and the schematic says I should get 0.1. Are these readings way out of spec? I'm not sure how much variation is acceptable. If this transformer is fried can new ones be obtained? I'm in the process of completely recapping this radio. Once I get it close I know someone who can do the final calibrations for me. The input transformer had been replaced and some earlier time but the same person that will do the final calibration gave me a used original replacment. Again some of the windings are off from the specs and I don't know what's allowable.
Thanks,
Keith


Messages In This Thread
47-1227 Output transformer - by keith49vj3 - 02-15-2010, 09:38 PM
Re: 47-1227 Output transformer - by Jim Berg - 02-17-2010, 01:34 PM
Re: 47-1227 Output transformer - by Ron Ramirez - 02-17-2010, 03:15 PM
Re: 47-1227 Output transformer - by keith49vj3 - 02-17-2010, 07:13 PM



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