Re: Synchronous Rotary Mechanical Bridge Rectifier

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Ed Phillips by way of Terry Fritz <twftesla-at-qwest-dot-net>" <evp-at-pacbell-dot-net>

Tesla list wrote:
> 
> Original poster: "rheidlebaugh by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <rheidlebaugh-at-zialink-dot-com>
> 
> The Edison cell chargers that powered lights and radios used mechanical
> rectifiers. the read was tuned like a tuning fork and magnetized with a
> magnet. As the AC powered a solinoid coil the read would vibrate on/off at
> the power frequency producing 1/2 wave DC. A sync. rotery gap should do the
> same job if timed correctly.
>   Robert  H

	Somewhere I still have a Benwood battery charger which uses a vibrating
reed in the manner you describe.  It works just fine and makes
incredible radio noise!

Ed