[Amps] 3-500Z heater voltage reduction

[Carl]

Just coil up some #10 magnet wire and put in series with the xfmr end of the 
filament choke, it wont take much. #12 will get pretty warm and can be used 
if there is air flow. You dont want to use copper wire that the temperate 
keeps going up.

Carl
KM1H



----- Original Message ----- 
From: "MIKE DURKIN" <patriot121 at msn.com>
To: "amps fourm" <amps at contesting.com>
Sent: Tuesday, September 15, 2009 3:03 PM
Subject: [Amps] 3-500Z heater voltage reduction


>
> Ok.. yea i did search some on reducing the voltage at the heaters on 
> google ... yikes alot of what in not really looking for.So a quick 
> question .. what is the favored way to reduce the voltage ?? i have 12V ac 
> across 2 at 3-500z's and i want to drop it by -- say 1 volt.
> Trying to keep to the confines of what i have around .. some 12 and 10Ga 
> solid magnet wire, some romex (120v stuff) and some 12ga hookup wire witch 
> i dont think the insulation is rated for heat at all ....
> Or some other common junk drawer stuff that would do the trick ... the 
> last thing i tried was a .27Ohm 10W cement resistor and that was too high 
> of a resistance ( was a bit surprised but oh well i dont know the internal 
> resistance if the filaments anyways)
> KC7NOA ... i think i even have some nichrome sitting round some where.....
>
>
>
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