[Amps] filament instant heating query / simple remedy

[Gudguyham at aol.com]

Hey Bill I got an idea, it's simple and probably the best way to go.   
Using a small 5A variac connected to a 1RPM mini motor with a stop connected to  
the rotation angle where the filament voltage is exactly 5v for a 3-500z.   
When you turn the switch on the motor slowly ramps up the line voltage in 
one  minute to the perfect 5v mark and shuts off.  This does 2 things, it 
slowly  ramps up the filament voltage to avoid transients and also sets the 
perfect  voltage as well.  
 
 
In a message dated 6/17/2012 11:19:09 A.M. Eastern Daylight Time,  
wlfuqu00 at uky.edu writes:

KISS.  Keep It Simple S*****.
73
Bill wa4lav


At 09:39 AM 6/17/2012  -0700, Jerry Kaidor wrote:

> >
> > Just put a resistor  in line switched with a relay!  This is not rocket
> >  science!
> >
>*** Nowadays, a PIC and associated circuitry  might be cheaper than a
>resistor and a relay.  Amazing times we  live in.  And yeah, it does get to
>the point where you're just  playing with technology.  But isn't fun the
>name of the  game?
>
>                 - Jerry  Kaidor
>
>
>
>
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