chokes, bad resistors(EMS)
From: Mad Coiler [SMTP:tesla_coiler-at-hotmail-dot-com]
Sent: Wednesday, June 03, 1998 9:34 PM
Subject: Re: chokes, bad resistors(EMS)
Well, I put the resistors in my protection circuit yesterday. Had two
3000 ohm 25W resistors in parallel on both legs (1.5k 50W on each side).
I ran the coil at low power for a few seconds. The resistors seemed very
hot. I ran it again at 2/3 power and after about 3 seconds two of the
resistors blew up. Yup, shattered to peices(EMS). Maybee these werent
very good resistors (i.e. self inductance) or maybe I forgot to mention
in my original post the power levels I was using. I had 3 12kV 60mA
NST's, and 2 12kV 30mA NST's. Maybee this is too much power for 50
>From: Mark S Graalman [SMTP:wb8jkr-at-juno-dot-com]
>Sent: Saturday, May 30, 1998 8:00 AM
>Subject: Re: chokes-new question
> Put the resistors in series with the choke coil
>in between the choke coil and the bypass to ground.
>Beings they 25 watt resistors, I'd use the 1.5 K
>On Fri, 29 May 1998 23:24:15 -0500 Tesla List <tesla-at-pupman-dot-com>
>>From: Mad Coiler [SMTP:tesla_coiler-at-hotmail-dot-com]
>>Sent: Friday, May 29, 1998 5:58 PM
>>Subject: Re: chokes-new question
>>All of you using resistors with you lowpass circuit: where do you put
>>the resistors? Say for example I have safety gap, capacitors accoss
>>gap and inductors off each terminal of the gap going to the TC primary
>>wires. Were do the resistors come in? I have been running my TC with
>>bypass caps, and with the caps & chokes, but dont have any R yet. I
>>have four 3k ohm 25W resistors, is 3k or 1.5K usable for this?
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