[Amps] re filaments & regulation

[W0UN--John Brosnahan]

I didn't write that--Rich did.  But either one will work--a rotary
style high-wattage potentiometer--or a high-wattage power
resistor with an adjustable tap.  Depends on whether you just
want to set it once and forget it--or if you want to diddle with
it as your line voltage varies.   I have better things to do in
a contest than tweak the filament voltage in real time!    ;-)

73--John   W0UN



At 03:31 AM 2/5/2003 +1100, you wrote:

>John   W0UN wrote:
>A rheostat in the primary of the filament/heater transformer is a
>convenient way to adjust filament/heater V.
>
>when you are talking about a rheostat are you describing the small 
>wirewound type variable resistor..similar looking to a mini-mini 
>variac...or are you talking about a high wattage variable resistor.
>Just curious as some people call them by either name and if I am never 
>sure I ask!
>        regards  Rick
>
>
>
>
>It is the soldier who salutes the flag,
>serves under the flag
>and who's coffin is draped by the flag,
>who allows the protester to burn the flag.
>
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