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Old 09-08-2007, 08:44 AM   #1
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Default Battery Charger
This Battery Charger is from 1896. You plugged it into a ceiling fixture via the bayonet cap mains end. (lamp holder socket - same as Edison screw). The pinch top lamp served as a voltage dropper but if it charged at AC I don't know. If there is a Westinghouse rectifier in the dial case it will have to be small. Anyhow. A nice piece of vintage kit.






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Old 09-09-2007, 10:14 PM   #2
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Are you sure it is a charger? It looks more like a device to check for a short in something. when the wires are shorted max voltage is across the lamp.
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Old 09-10-2007, 12:00 PM   #3
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Rob. Here is a close up of the meter dial. RUNBAKEN BATTERY CHARGER




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Old 09-10-2007, 08:10 PM   #4
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Default interesting made in 1896
I don't think they had diodes as we know them back then. they probably used selenium type (I think I spelled it right).

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Old 09-10-2007, 11:40 PM   #5
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Runbaken made a thing just like the Fluke non-contact voltage tester a long time ago called a "Testoscope" way back in the 1940's.

http://www.google.com/patents?id=G1x...BAJ&dq=2476115
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Old 09-11-2007, 06:42 AM   #6
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Default interesting device
But it says you make contact to the metal part. so, its a contact type device. It's just like the ones I used years ago. (30 to be exact).

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