[Lowfer] Alpha on a degaussing coil

Robert M. Bratcher Jr. bratcher at pdq.net
Tue Mar 2 08:23:36 EST 2010


At 12:54 PM 2/28/2010, you wrote:

>I located a home brew degaussing coil I made in the 60s.  Back then color TVs
>didn't have built in degaussing coils so occasionally a color TV's 
>CRT needed to
>be degaussed to keep the colors clean.  Especially when a high current device
>like a vacuum cleaner was turned on or off while near the set.  I'm 
>sure 90% of
>the subscribers on this group already know that :)
>
>Anyway this coil is self resonant at 5 KHz:
>
>http://www.w4dex.com/vlf/degaussing_coil_b.jpg
>
>Dex

I remember hearing a low hum for a few seconds when turning on the 
big color TV set my parents had in the 1970's. It was the degaussing coil..... 



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