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Registered Member #1721
Joined: Sat Sept 27 2008, 08:44PM
Location:
Posts: 136
Thanks for Posting
Simple but elegant construction, with great results. Seeing nice fat Marx bank discharge makes me wonder how it would look if you fed a vacuum tube just like a flash X-ray tube, but with a thin Be window anode, instead of a tungsten target? Would you see a purple flash in the air from the electron beam ionizing it? Sorry to get off on that tangent, but its just been one of those bizarre thoughts which enter my mind when I see a nice Marx setup, good show :)
PS: You must be getting quite a local EMP pulse when it discharges?
Registered Member #1938
Joined: Sun Jan 25 2009, 12:44PM
Location: Romania
Posts: 701
Thanks. Maybe a MOD could move it to Projects, I wasn't sure what's the best place to post it myself.
@LutzH The EMP or some spikebacks damaged my lo-voltage powersource feeding the 555 Flyback circuit (a digital voltmeter and the variable voltage block). So it's not that safe yet, must think of some effective protection. Currently I've fixed it and using this version:
@GhostNull: thank you.
@quicksilver: the one posted here: but with an IRFP460
Registered Member #1938
Joined: Sun Jan 25 2009, 12:44PM
Location: Romania
Posts: 701
LutzH wrote ... how it would look if you fed a vacuum tube just like a flash X-ray tube, but with a thin Be window anode, instead of a tungsten target? Would you see a purple flash in the air from the electron beam ionizing it? Sorry to get off on that tangent, but its just been one of those bizarre thoughts which enter my mind when I see a nice Marx setup, good show :)
Taking a second thought on what you've said above, the similarity between your description and the Lenard window just hit me. See more on:
Registered Member #15
Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068
Very nice project! Nice output arc. Just be sure to keep sensitive equipment out of the vicinity when running, and don't run in any room where there could be alarm or heater (digital thermostat) wires running through the room. Unlike Tesla coils which don't radiate much, the discharge from a Marx can induce enormous voltages on any local conductors, especially high impedance cabling and potentially damage lots of things.
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
hey RAdhoo! nice !!! but your low voltage toroidal transformer PS is still vunlerable to overvoltage spikes. and the TIP3055 is the same as the 2N3055, the die are the same but the 2n is a TO-3 case and the TIP is a TO-220 case type. OK they are the same electrically, what would improve your design regardlesss of transsistor choice isthe use of TVS diodes, then youll be bullet proof.
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Marx Generator Huge sparks (~200.000V)
