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VTVM type probe, with CAD file
von clytle374
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Found and restored a VTVM (vacuum tube volt meter) which was missing the probe. Obviously I printed my own, being that we're on this site.
The coax is RG-58C/U and the heat shrink is for a 18650 lithium ion battery. I had the probe tip off an old volt meter. I used some more heat shrink(not shown) for the coax to provide extra strain relief, and a bit of extra protection since the VTVM is rated to 1500V.
You will probably have to play with the clearance in the taper to get the inside to lock into it with the heat shrink you have.
Freecad( Version: 0.18.15711 (Git)) source file is included. All dimensions should be pulled off of sketch002(sorry, I goofed in the beginning) for easy changes. If anyone knows freecad and wants to let me know I'm doing it all wrong that would be appreciated too.
The coax is RG-58C/U and the heat shrink is for a 18650 lithium ion battery. I had the probe tip off an old volt meter. I used some more heat shrink(not shown) for the coax to provide extra strain relief, and a bit of extra protection since the VTVM is rated to 1500V.
You will probably have to play with the clearance in the taper to get the inside to lock into it with the heat shrink you have.
Freecad( Version: 0.18.15711 (Git)) source file is included. All dimensions should be pulled off of sketch002(sorry, I goofed in the beginning) for easy changes. If anyone knows freecad and wants to let me know I'm doing it all wrong that would be appreciated too.
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