Ah, take it easy on him Keith, we were all kids at one point and have stupid
tails to tell. Two guys I know are missing an arm from their experiences.
I just have this weird tick... Tick... Tick... from me riding the
lightning.
Blowing holes in your stuff is completely normal.
Like the tee shirt says... If you don't limp, you ain't ***t
BWaaaaHAHAHAHAHAH
Seriously Tom, do you know why the VOLTAGE peaks like that? I would think
the resonance of a correctly resonated circuit would just block the ripple.
I don't follow why there would be a spike as it is forming a parallel
resonant circuit. Do we see this effect in RF parallel circuits like when
used as a trap?
I do realize if the choke did it on its own, you would actually PEAK the
ripple.
Is this some other effect and the rumor just runs rampant through the ham
ranks? We realize you just about got yur ass blown off, but I'm not
following the reason. Have you tried to duplicate the experiment? Maybe it
really didn't happen that way and the explosion was really you being
teleported to a parallel universe and back by aliens. That happens to me all
the time so I know it is possible. AHAHAHA DD
-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
Behalf Of Keith Dutson
Sent: Friday, May 11, 2007 11:10 AM
To: 'Amps Amps'
Subject: Re: [Amps] Power factor and choke vs resonant-choke input supplies
>I had a resonant choke in a full wave bridge rectifier supply using a pole
pig transformer. It was an attempt to use a pole pig with a pair of small
Eimac triodes. My intention was to come up with 3700 volts dc from a pole
pig.
I used the formula in Bill Orr's Handbook to determine values. My components
were VERY conservative. The filter capacitor was a power line power factor
correction capacitor, so it would handle many kV.
When I powered this thing up my 3-500Z's arced from anode to grid. Thinking
I had gassy tubes, I pulled the anode caps.
When I powered up again a large bypass cap shattered. Then I clipped a HV
probe across the HV line, stood back a couple feet on a rubber matt, put one
hand in my pocket, and I turned on the toggle with the other. The television
CRT 2nd anode HV wire in the supply blew in two and it came out the open
door and attached to my wrist. I wound up with first through third degree
burns all up and down my arm. I had a charred hole the size of a quarter in
my wrist.
-------------------------------------------
That is insane! The pig poles I know about transform 7000 to 240 or
vice-versa, at enormous currents. What size circuit (breaker size) did you
feed it with?
>Then I watched the second hand on a clock move and carefully noted I could
still think, hear, move, and see. I was frustrated I never paid attention to
how long a human could live with no heartbeat or with seriously flawed
heartbeat.
After the second hand swept around and there was no change in my ability to
think, I assumed my heart was still running at enough capacity to get help,
so I made sure the power was off and I told my wife not to panic but we
needed to get some medical help.
-------------------------------------------
You were old enough to be married when you did this?
73, Keith NM5G
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