Re: what is a terry filter

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "BunnyKiller by way of Terry Fritz <twftesla-at-qwest-dot-net>" <bigfoo39-at-telocity-dot-com>

Tesla list wrote:

>Original poster: "colin.heath4 by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<colin.heath4-at-ntlworld-dot-com>
>
>hi all what is a terry filter and a mov please
>many thanks colinheath
> 
> 
>
Hi  Colin....

a Terry filter is either 2 things ...  its a filter system made from 
resistors and caps to keep unwanted kick backs of hi voltage pulses from 
the coil reaching the hi voltage transformer and the initial power source...

the other Terry filter is when you send in or reply to various Emails on 
this list that doesnt apply to Tesla coiling ...   ;)


a MOV is a Metal Oxide Varistor...    normally they a black , circular, 
disc shaped items with 2 leads... they are used to catch hi voltage 
surges ( kinda like a miniature lighting rod ) ...  once the voltage 
builds up to a certian point, the material inside of the MOV will break 
down and allow a quick pulse of electricity to break thru a tiny point 
of the material and go to ground ....  thus saving the other circuitry. 
 They do have a limited life time due to the limited amount of material 
to break thru .....



Scot D