Thanks
:Thanks
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Dave, You've listed your best (and perhaps only) 2 options - I really don't know of another good work-around. You can try to carefully remove a few turns and see if you find the break. Hopefully it will be within a couple of turns. You'll likely need to realign your set afterwards. But, before you start peeling off windings, check all the wires where they meet the terminals. Oftentimes this is where the break lies - hope you're lucky!
My initial query would be for more info, as to the brand / model / chassis working with.
That logic being IF that units design actually utilized one of the procedures of incorporating some free outer turns acting as a capacitive gimmick element.
In that case, it would show NO continuity to another terminal.
The other bit would be as to its construction, hard frozen windings upon a large Bakelite coil form ?
Or, one of the newer construction modes of being upon a small cardboard form and made in layered windings with a yellowish wax final over coating.
If the latter…. a slow controlled heating of the wax with a blow drier does wonders for exposing an errant broken wires end.
I have worked with ends as short as 1/16 in showing on an inner most winding…otherwise….the outer windings are a piece of cake.
73's de Edd
In another set I own the primary and secondary were blown out. It is an Admiral farm radio (batteries), and someone plugged it in. I rewound the coil using similar gauge wire, and the radio plays very well, though the stations are a bit spread out at the ends (the coil, due to differences in winding technique, probably doesn't have as much internal capacitance (between wire turns) as it did when new).
If you unwind the original winding and wind it again with new wire, you will probably have very good results.....if you can't patch the original wire. If the set refuses to operate, remember to phase the windings properly (reverse the primary or the secondary if they are not phased properly). www.tubesandmore.com and www.radiodaze.com also sell universal replacements which have powdered cores. The cores can be adjusted to make the coils track nearly perfectly for any radio.
T.
In addition to what others have said (for a little extra reassurance), I have a Philco 60 in which the oscillator secondary corroded through (typical). I rewound it with similar gauge wire (really thin....in the 40s), and the radio now tracks perfectly.
:
:In another set I own the primary and secondary were blown out. It is an Admiral farm radio (batteries), and someone plugged it in. I rewound the coil using similar gauge wire, and the radio plays very well, though the stations are a bit spread out at the ends (the coil, due to differences in winding technique, probably doesn't have as much internal capacitance (between wire turns) as it did when new).
:
:If you unwind the original winding and wind it again with new wire, you will probably have very good results.....if you can't patch the original wire. If the set refuses to operate, remember to phase the windings properly (reverse the primary or the secondary if they are not phased properly). www.tubesandmore.com and www.radiodaze.com also sell universal replacements which have powdered cores. The cores can be adjusted to make the coils track nearly perfectly for any radio.
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:T.