Yet another old meter, a General ElectriC Model 8AP9VASA1, this one has a stamp inside that says US Navy , and a piece of paper with typeing that says November 13, 1945 Standard Meter 600 volts / 595 volts.
It didn't work, and when I took it apart, I found 8 coils, wired in series.
Each coil appears to have a number written on the top. (several are illegible). When I added the numbers together, my best guess is that their combined value is around 25,000.
Three of them tested bad, and one (of the original 9) was missing.
I took one of the bad ones out of the circuit, and with some drilling of a rivet, was able to get it disassembled on one end.
One of the small wires had broken off, and I can't find the loose end that is still attached to the coil. They all appear to be wound by hand.
Is there a way I can use modern off the shelf coils in series to recreate what was originally done?
If not, how can I more accurately measure the value of each coil, and guess the values of the unknowns?
It's a nice looking old meter, and I would like to get it working if possiible.
I've never wound a coil before, but looks very time consuming.
Any insights are greatly appreciated.
Thanks,
Gary
It didn't work, and when I took it apart, I found 8 coils, wired in series.
Each coil appears to have a number written on the top. (several are illegible). When I added the numbers together, my best guess is that their combined value is around 25,000.
Three of them tested bad, and one (of the original 9) was missing.
I took one of the bad ones out of the circuit, and with some drilling of a rivet, was able to get it disassembled on one end.
One of the small wires had broken off, and I can't find the loose end that is still attached to the coil. They all appear to be wound by hand.
Is there a way I can use modern off the shelf coils in series to recreate what was originally done?
If not, how can I more accurately measure the value of each coil, and guess the values of the unknowns?
It's a nice looking old meter, and I would like to get it working if possiible.
I've never wound a coil before, but looks very time consuming.
Any insights are greatly appreciated.
Thanks,
Gary
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