02-08-2020, 12:26 AM
I'm starting restoration of my 37-116.
I hit my first problem.
I'm trying to figure out what's going on with the choke, part 120 (32-7491). I checked the resistance and it reads ~11K ohms instead of 400 ohms. That's not a good sign.
If anything I would have expected it to maybe be open (broken wire) or less than 400 ohms (some sort of short). But that not the case.
Any ideas? I'd kind of like to salvage it, but don't really want to wind wire for the next week.
Also I'm thinking of restuffing capacitors and making appropriate looking resistors by placing "modern" ones in polystyrene tubes. It's relatively easy with the exception of one detail. The leads on modern ones are a lot thinner. For my "prototype" I soldered thicker leads to the resistor. It works but I worry about accidentally melting those joints and creating cold solder joints when installing them. I know, be careful and use a heat sink. Any thoughts? Is the lead thing pathological?
Here's my "prototype". The paint job's a bit rough...
I hit my first problem.
I'm trying to figure out what's going on with the choke, part 120 (32-7491). I checked the resistance and it reads ~11K ohms instead of 400 ohms. That's not a good sign.
If anything I would have expected it to maybe be open (broken wire) or less than 400 ohms (some sort of short). But that not the case.
Any ideas? I'd kind of like to salvage it, but don't really want to wind wire for the next week.
Also I'm thinking of restuffing capacitors and making appropriate looking resistors by placing "modern" ones in polystyrene tubes. It's relatively easy with the exception of one detail. The leads on modern ones are a lot thinner. For my "prototype" I soldered thicker leads to the resistor. It works but I worry about accidentally melting those joints and creating cold solder joints when installing them. I know, be careful and use a heat sink. Any thoughts? Is the lead thing pathological?
Here's my "prototype". The paint job's a bit rough...
Can't think of anything witty.
Greg O.
Whitehall, PA