10-08-2025, 07:46 PM
I have made more progress on the big 16B!
The shadow meter coil is rewound! It took me a while as I went slow, weighing the wire spool till I got close to the predicted weight that should remain. I calculated for 1,400 ohms and ended up with 1,539 ohms. A little over but close enough. My food scale works good for this.
The method I used was not my idea, but member Processhead on ARF. He did this with a field coil and I’ve used it ever since. Here is a link to the wire manufacturer that has all the information needed to make this work. Cooner Wire
I replaced the lamps and looked at the shadow meter just to see if it at least looks OK. I might have to fiddle with the lamp a bit to get a nice thin line.
The tuner is next. Then maybe a power up? Well shall see.
I included pictures of my rewinding setup. It’s nothing special, but it got the job done. I’m not going into business fixing coils. You’ll also see the updated schematic, and there is a lot of green on it!
The shadow meter coil is rewound! It took me a while as I went slow, weighing the wire spool till I got close to the predicted weight that should remain. I calculated for 1,400 ohms and ended up with 1,539 ohms. A little over but close enough. My food scale works good for this.
The method I used was not my idea, but member Processhead on ARF. He did this with a field coil and I’ve used it ever since. Here is a link to the wire manufacturer that has all the information needed to make this work. Cooner Wire
I replaced the lamps and looked at the shadow meter just to see if it at least looks OK. I might have to fiddle with the lamp a bit to get a nice thin line.
The tuner is next. Then maybe a power up? Well shall see.
I included pictures of my rewinding setup. It’s nothing special, but it got the job done. I’m not going into business fixing coils. You’ll also see the updated schematic, and there is a lot of green on it!
Tony
“People may not remember how fast you did a job, but they will remember how well you did it”
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