Re: On the fly tuning of a TC

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

Original poster: "by way of Terry Fritz <twftesla-at-uswest-dot-net>" <Mddeming-at-aol-dot-com>

In a message dated 4/16/01 10:15:55 AM Eastern Daylight Time, 
tesla-at-pupman-dot-com writes: 

Snip - - - 

>
> I screwed the motor underneath my TC's primary winding, with an 18mm piece of
>
> acrylic as an insulator, and connected the arm assembly. with the power to 
> the 
> TC off i tested it and although it was a little jerky the holder could slide 
> from the 4th to the 12th wnding - enough movement for me. I pluged the cable 
> into the computer and run the basic written pulse program. 
>
> I turned my NST on and amid a shower of sparks from the primary started to 
> move 
> the holder. suddenly a streamer hit the primary (something very rare - i 
> use a 
> double toroid configuration) and the computer turned off. It turns out that 
> I 
> had fried the mainboard of the PC (it was a crappy old 486 not worth the 
> £10 I 
> paid for it) thorugh toe primary cable 
>
> I have still not learnt from my mistakes, and am trying to develop an new 
> trpe 
> of on the fly tuning. Please reply wiht ideas (or just to take the piss!!!) 
>
> Thanks all 
>
> Jason 


Hi Jason! 

Perhaps if 
1.    The motor were outside the primary coil pushing in instead of in the 
center pushing out, 
2.    Had a longer non-conductive drive rod, 
3.    Had an RF filter and a shielded computer cable. 
4.    The computer cable was positioned so as to not run near any part of the 
coil. 

I think your computers might last longer. 

Matt D.