[SEL] Early Switchboard Meters and Switchgear

[bill at antique-engines.com]

Yes, algore took credit...........

Bill

> In message
> <1398.165.206.180.102.1121711219.squirrel at antique-engines.com>,
> bill at antique-engines.com writes
>>Wasn't it Edison who really observed the effect but didn't take or have
>>the time to work with it - and basically the structure of a light bulb
>>became the basis for the first "valve" - so called because of the
>>one-way flow of electrons.
>
> For those interested, there is a really good history of the "valve"
> here:
>
> http://www.radio-electronics.com/info/radio_history/valve/hov.php
>
> Edison is credited with observation of thermionic effects in the late
> 1880's, Fleming with the first practical application at about the turn
> of the 20th century, but it was deForest in about 1913 (?) who
> demonstrated amplification in his "audion" valve (vacuum tube).  You all
> know what happened next :-)
>
> Regards
>
>       Pete
> --
> Peter Scales
>
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