[Amps] soft start, how to determine if needed?

[Roger]

Bill, W6WRT wrote:
> ORIGINAL MESSAGE:
>
> On Sun, 28 Feb 2010 09:58:56 +0200, "Alex Eban" <alexeban at gmail.com>
> wrote:
>
>   
>> By the way, an old trick that was used in tube type TV sets was to install a
>> thermistor in series with the mains.
>>     
>
> REPLY:
>
> That thermistor was not used for soft start. It was part of the
> degaussing system and had very poor reliability. I changed hundreds of
> them over the years. Not recommended.
>   
I'll bet you replaced almost as many, if not more than tubes.  Typically 
the set would just quit rather than some indication of imminent failure 
that tubes often gave. 

Yes, I also repaired tube type TV sets in a prior life. Even build a TV 
set (B&W) in with a correspondence course.

73

Roger (K8RI)
> 73, Bill W6WRT
>
>