Re: Filament voltages

["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: "Alexander Rice by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <alex-at-rices.myip-dot-org>
> 
> 06/05/2002 18:58:21, "Tesla list"
> <tesla-at-pupman-dot-com> wrote:
> 
> >Original poster: "davep by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <davep-at-quik-dot-com>
> 
> Hi Dave
> 
> >> This would be a loaded 10v-at-40amp+ so 400w x
> 4 + 1600 w x 1.414 = 2265,

> 
> my understnding is that since the filament
> provides the electrons by thermionic emission
> then the power that is being drawn from the
> tubes mostly comes from the plate, the
> accelerating voltage is applied to the plate
> and the control voltage to the screen. So inb
> this case you need more than just the apparent
> power for the resistive load of the fillament
> >
> >       best
> >       dwp
> Regards
> 
> Alex

	I don't understand it either.  The filament power is the filament power
and is 400 watts for this case; it's unrelated to the power in the plate
circuit.

Ed