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Most resistors could be measured in-circuit as often times they end up driving a tube's electrode and have no DC path to complete the circuit. If a resistor measures slightly below the declared value it is most likely OK and can be left in place; if it settles above the value outside 10-20% it then has surely drifted by that much. If over 20% it should be replaced, especially if it is a part of a divider where precision matter more than in, say, being a grid stopper.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Messages In This Thread
RE: Philco Model 20 Lowboy - by morzh - 03-24-2017, 10:51 AM
Users browsing this thread: 31 Guest(s)
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Recent Posts
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91H Code 126 Restore
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As I was studying this schematic I was wondering what does this dotted line means? I haven't traced it out yet.
An o...RealRider — 07:22 PM |
91H Code 126 Restore
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When it comes to the cloth covered power cords, if they are not frayed, and are flexible, and if I can bend one without ...Arran — 06:21 PM |
An attempt to remove the Field Coil from a G speaker
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Could be. The central cylinder is OK, but the sides are...well. What's done is done.
I wonder if some standard bobbine w...morzh — 06:02 PM |
An attempt to remove the Field Coil from a G speaker
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Mike;
As I was saying it doesn't look like they used much of a bobbin for the field coil, not like a Magnavox one wou...Arran — 05:49 PM |
Atwater-Kent 84, restoration.
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This AK84 was bought, I think, last fall.
For a whopping $100.
It has been, according to the seller, restored.
As I go ...morzh — 05:48 PM |
Philco model 60
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Plus I forgot that I have a spare complete Philco FC speaker, that would work perfectly, now that I don’t need it. Got i...Radios1340 — 05:36 PM |
Philco model 60
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Duh! I guess I can’t read an ohm meter today. I took the oscillator coil out and will take some readings tomorrow.Radios1340 — 05:30 PM |
An attempt to remove the Field Coil from a G speaker
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Well, I killed the coil.
Tried to get to the end of that oxidated spot, but while holding the coil in hand, i let it sl...morzh — 05:27 PM |
91H Code 126 Restore
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It does not require taking apart.
Find an opening, any gap that would lead inside, where the resistive element and the ...morzh — 04:59 PM |
Philco 70 antenna lead
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I agree. From the ones I've worked on its always been that green corrosion that causes the coils to open.Jim Dutridge — 04:34 PM |
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