[ARC5] Carbon Microphones - in your laserprinter?

[radio_man at wbsnet.org]

Probably has other chemicals in it too so can be "attached" to paper.

Way back when....too many years ago, we used to make 'microphones' for
experiments by taking center out of carbon/zinc D cells and using pencil
sharpener to get carbon dust.  On a sheet of paper with some alligator
clips, worked!  Sorta...

Rod
KØEQH



> With all this talk about carbon microphones, I wonder if the toner from a
> laser-printer or photocopier would be of any use in making a microphone?
> It's pure(?), ultrafine carbon...Bill KA3AIS
>
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