[volt-nuts] Fwd: Old resistors

[Marvin Gozum]

These look like resistance demonstrators for physics labs; slide
potentiometers.  Those devices were made very hardy back then, and
while they can easily be replaced by a precision bournes pot or a
used Tegam resistance box, you have it why not use it?

Just make sure the contacts are clean and be wary with the conductors
exposed, its a shock hazard.  Given the printed rating its rated for
425 Watts, when it was new.

At 05:03 PM 7/28/2013, Joseph Gray wrote:
>I know someone who has several of these old style resistors. Can anyone
>tell me anything about them? Are they of any use?
>
>https://dl.dropboxusercontent.com/u/19599147/Resistor%20-%20side.jpg
>
>https://dl.dropboxusercontent.com/u/19599147/Resistor%20-%20front.jpg
>
>Joe Gray
>W5JG
>__

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