[NJARC] Bar Magnet wanted

[Fred Carl]

Hello Rob,

   Please record the program. We could use it at InfoAge in the 
telephone exchange building.

Thank you,
Fred
732 299-0894

Robert Flory wrote:
> Visit our web site - See http://www.njarc.org
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> Hi All,
> I am doing a program on telephony at a school and would like to 
> recreate the device at our museum with the microammeter and bar 
> magnet, to help explain how a dynamic microphone works.  Does anyone 
> have a bar magnet kicking around, or know a good source for stuff like 
> that.  Will also need a zero-center microammeter.
>  
> Thanks,
> Rob
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