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Author Topic: Leeds and Northrup 86962 millivolt meter  (Read 1313 times)

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Offline Wallace GasiewiczTopic starter

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Leeds and Northrup 86962 millivolt meter
« on: April 07, 2022, 01:02:40 pm »
Leeds and Northrup 86962 millivolt meter
Just picked up one of these as a lark. Looks pretty good inside and out except the  batteries are corroded and battery terminals need some care.
I have trouble finding a manual. This thing has a Weston Cell in it. Ca I measure the cell with an HP 3456??

Wally
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Offline alm

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Re: Leeds and Northrup 86962 millivolt meter
« Reply #1 on: April 07, 2022, 01:38:56 pm »
The 3456A should have an input impedance of > 10 GOhm in DCV ranges up to 10V, so that should be fine to measure a Weston cell if you set it to manual ranging just to be sure it doesn't switch to the 100V range.
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