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Philco 42-1008 chassis died.
10/31/2013 6:14:51 PMDave F
I did a really stupid thing with this radio/phono. I had a few wires crossed on the phono when I reinstalled it into the cabinet. Once I turned it on, it blew out something because I have no power. be fore that, the radio was perfect. Should I assume I shot the transformer or is there a possibility the block capacitor area may have opened? I cannot get the tubes to light or anything. I checked all tube filaments and they are fine. No pilot lamp either. Any suggestions or confirmation?
10/31/2013 6:48:12 PM CV
Use an ohmmeter to methodically test every wire from the line cord plug blades to where they end at the transformer primary and/or power switch. You may have burned open a line power wire, the power switch, or the transformer's primary winding. Each of these can be separately checked in turn until you locate the problem. If the tubes don't light about the only thing that can be wrong is that AC isn't making it through the power transformer primary.
10/31/2013 7:25:27 PMDaveF
:Use an ohmmeter to methodically test every wire from the line cord plug blades to where they end at the transformer primary and/or power switch. You may have burned open a line power wire, the power switch, or the transformer's primary winding. Each of these can be separately checked in turn until you locate the problem. If the tubes don't light about the only thing that can be wrong is that AC isn't making it through the power transformer primary.
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It was the switch, it became open, fortunately saving the transformer, Thanks for the info, it is appreciated.
10/31/2013 10:22:09 PMJohn K
Install a 1 amp slo blo fuse in the line cord ahead of the transformer. That will save the transformer in the future when things go wrong. You can solder a fuse holder to one lug of the switch and solder one leg of the line cord to the other lead from the fuse holder. Use heat shrink or tape to insulate your work.
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:It was the switch, it became open, fortunately saving the transformer, Thanks for the info, it is appreciated.
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11/1/2013 1:23:42 PMCV
On sets that I restore, I make it a point to install a line fuseholder on radios that aren't already so equipped. It's cheap insurance against disaster, and the original set design engineers no doubt would have used them if the company beancounters had let them.

You can purchase plastic-capsule cartridge style fuseholders at Radio Shack or auto parts stores and install them under the chassis with very little effort. For a slightly more "period authentic" installation you can also purchase bakelite panel-mount fuseholders- however, these will require drilling a hole in the chassis.

I kinda prefer the "chassis mount cartridge style" fuseholder, which is just a plastic base with two metal clips that hold the bussman-style fuse. This is the style that many German-made sets of the 50's used. The downside is that if you mount it on top of the chassis where it is easy to access, you will have line voltage exposed at the terminal clips. But, who wants to live forever?



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