From: Chris Carlen
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.1) Gecko/20020826
X-Accept-Language: en-us, en
Subject: Re: Strange flyback...
Date: Sun, 20 Oct 2002 23:54:26 GMT
NNTP-Posting-Date: Sun, 20 Oct 2002 16:54:26 PDT
Bob Wilson wrote:
> Forget it. TV flyback transformers are purpose-designed for the exact TV
> they are used on, and include several auxiliary secondaries that are not
> high voltage, used for other things in the TV. Further, most flybacks these
> days have an integrated voltage tripler built in.
> This is not something that you should be fooling around with, unless you
> understand a lot more than you appear to. High voltage can be lethal.
Party pooper! :-D
Heck, if I hadn't gotten hold of a model T ignition coil from a flea
market when I was about 12 or so, and figured out that I could make it
put out a nice continuous 3/4" arc by powering it from a 12V filament
transformer, I may have never developed enough interest in electronics
to, 23 years later, be finally developing enough rigorous circuit
analysis skills to really design whatever I want, and to do it safely.
Seriously though, I shudder to think about some of the things I did as a
kid. I started playing with line voltage in second grade, no kidding!
And I somehow knew how to not get nailed by it already at that age,
probably from just paying attention to my dad when he was working on
electrical stuff. I loved electrical stuff.
Want to hear what I did for show and tell one day???
I brought a string of Christmas lights to school. I had broken the
glass off the bulbs, by putting them in a paper bag and whacking them
with a hammer. I had figured that trick out by 2nd grade.
Then I'd twist the filament support leads together (which were also the
Plug them in and they make a beautiful shower of sparks! What amazes me
to this day, was how the teacher just didn't do anything about it. I
have no memory of being reprimanded or having my parents informed. Any
I remember that I brought it in a brown paper bag.
If someone wants to play with HV, lets at least inform them of some
useful facts: Try to get something that will make a bunch of kV, but at
only 5 mA or less. Then if you get zapped, the likelyhood of getting
seriously hurt is very low. Don't play with more than 5mA with high
voltages until you have some solid basic circuit theory understanding.
Since you probably have to wire your HV power supply to the line
somehow, start a thread here about how to properly wire things to the
line, then absorb all the great knowledge that spews forth.
Christopher R. Carlen
Suse 7.3 Linux 2.4.10