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Offline RAST

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What is this?
« on: August 12, 2020, 05:44:54 pm »
 I have had this for years and never knew what its original use was. The bodies and friction knolbs are brass, the probes/pointers are steel and the bar they are on is a non-conductive material. No electrical continuity between the brass bodies. Does any one know?

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Offline iddee

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Re: What is this?
« Reply #1 on: August 12, 2020, 07:26:29 pm »
Is there electrical continuity between the brass bodies and the steel spikes?
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Offline RAST

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Re: What is this?
« Reply #2 on: August 12, 2020, 08:27:53 pm »
Yes, just the two units are insulated from each other by the bar they mount on. Loosen the top knobs and they will slide off the bar.
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Offline Zweefer

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Re: What is this?
« Reply #3 on: August 14, 2020, 06:21:39 pm »
Rough size of the item?
Could you take a photo of the other side as well?
I think I know someone who may know, but need to see both sides...
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Offline RAST

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Re: What is this?
« Reply #4 on: August 15, 2020, 08:24:31 am »
Thanks for looking, bodies are round, both sides the same.



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Offline Mcedwar

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Re: What is this?
« Reply #5 on: September 21, 2020, 07:30:33 am »
Looks like trammel points.
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Offline RAST

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Re: What is this?
« Reply #6 on: September 21, 2020, 08:23:22 am »
Thanks, I had thought something similar, but the measuring distance on the bar is so small. Perhaps at one time there were different length bars with them.
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Offline Mcedwar

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Re: What is this?
« Reply #7 on: September 21, 2020, 11:45:30 am »
Looking on Amazon, there are some available without a bar at all.  Easier to ship that way, and you can provide whatever length you need.
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