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Old 4th Jun 2021, 6:42 pm   #4
Paul_RK
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Join Date: Nov 2003
Location: Fakenham, Norfolk, UK.
Posts: 4,246
Default Re: How's this for a strange device

Quote:
Originally Posted by TowerRadio View Post
...the transparent case always looked to me as if it was made from celluloid!Les.
Seems it is.

https://collection.sciencemuseumgrou...eter-voltmeter
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