[AMPS] parasitic suppressors

Bob Marston k1ta@earthlink.net
Thu, 02 Jan 1997 23:06:37 -0800

At 03:02 AM 12/11/97 -0800, you wrote:
>>Damped Ringing....is this a new phrase for you....haven't heard that one
>>before except maybe in a pre 1940 QST.  
>When DC current is pulsed through an L-C circuit, damped ringing occurs 
>at the resonant frequency.  This is how spark transmitters produced RF.  
>.  .  Damped wave ringing is discussed in the October, 1988 *QST* and 
>September/October 1990 *QST* articles on intermittent VHF parasitic 

Dampening ring is a subject that is given extensive treatment in Sophmore
year EE circuit analysis courses. It makes up a good part of transient
state analysis.

									Bob K1TA

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