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4hv.org :: Forums :: General Chatting
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Hazmatt_(The Underdog)
Sun Mar 01 2009, 03:08AM
Hazmatt_(The Underdog) Registered Member #135 Joined: Sat Feb 11 2006, 12:06AM
Location: Anywhere is fine
Posts: 1735
My idiot cat trying to sleep in a wierd place:

020f
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Dr. Drone
Tue Mar 03 2009, 01:43AM
Dr. Drone Registered Member #290 Joined: Mon Mar 06 2006, 08:24PM
Location:
Posts: 1673
shades
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Arcstarter
Tue Mar 03 2009, 10:58PM
Arcstarter Registered Member #1225 Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
Link2
8 stitches anyone? :D
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rp181
Tue Mar 03 2009, 11:14PM
rp181 Registered Member #1062 Joined: Tue Oct 16 2007, 02:01AM
Location:
Posts: 1529
Speaking of stiches....
Me and my friend where in class, making slide holders. We where using xacto knifes to cut the inner square. He was using a dull blade, and got frustrated. He started stabbing the paper, and it went through. It cut a deep gash in is little finger =)
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Arcstarter
Tue Mar 03 2009, 11:17PM
Arcstarter Registered Member #1225 Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
Hehe, something similar happened to me in 2nd grade. I was stabbing an eraser with a pencil, and i hit my hand. I can still see the lead in my skin, after ~8 years.
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Tom540
Tue Mar 03 2009, 11:31PM
Tom540 Banned on 3/17/2009.
Registered Member #487 Joined: Sun Jul 09 2006, 01:22AM
Location:
Posts: 617
Arcstarter wrote ...

Link2
8 stitches anyone? :D

Was this an accident or were you being emo?
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Arcstarter
Tue Mar 03 2009, 11:33PM
Arcstarter Registered Member #1225 Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
Tom540 wrote ...

Arcstarter wrote ...

Link2
8 stitches anyone? :D

Was this an accident or were you being emo?
Accident -.- ._.
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Proud Mary
Fri Mar 06 2009, 09:03PM
Proud Mary Registered Member #543 Joined: Tue Feb 20 2007, 04:26PM
Location: UK
Posts: 4992
My new Hydrogen Thyratron FX297 smile compared with Raytheon 811A and box of matches.

Anode Peak Inverse Voltage: 25kV
Peak anode current: 500A
Rise time: 2500A/us
Peak grid current: 1A/1kV/us

Heater: 6.3V/21.5A




1236373279 543 FT6000 Hydrogen Thyratron Fx297
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Dr. Dark Current
Fri Mar 06 2009, 09:10PM
Dr. Dark Current Registered Member #152 Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
Harry wrote ...

My new Hydrogen Thyratron FX297 smile compared with Raytheon 811A and box of matches.

Anode Peak Inverse Voltage: 25kV
Peak anode current: 500A
Rise time: 2500A/us
Peak grid current: 1A/1kV/us

Heater: 6.3V/21.5A


1236373279 543 FT6000 Hydrogen Thyratron Fx297

Could these be used for a VTTC? I saw one on local auction pretty cheap, I believe it was bigger (taller) than yours...


Speaking of big glass, here's "the bulb", more likely a balloon, made by...TESLA!

1236373741 152 FT6000 400
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Arcstarter
Fri Mar 06 2009, 10:56PM
Arcstarter Registered Member #1225 Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
Someone should try thyratron vttc! Make it disruptive, and perhaps a reverse HIGH voltage HIGH current diode in anti parallel to let the oscillations continue when the 'spark' occurs. Just use instead of spark gap, and it could perhaps be a cheap replacement for IGBT's in a SISG using sidacs to breakdown cause thyratron to conduct, or perhaps use a simple oscillator and GDT (grid drive transformer :)) with a step up, run by a simple PWM circuit. This might be problematic since it is a disruptive circuit, so very good isolation would be good. The GDT might be something like a wall wart transformer backwards or something. I think i will make one if i get some cheap small thyratrons. I will learn some about them, as i don't even know 'grid' break-down voltage.

Hmmm.
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