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^ i'm wanting to build one like that but in the text below the circuit it says that
The transformer is a 9kV 30mA neon transformer that is rectified by a string of ten 1N4007 diodes for a 10kV 1A rectifier rating
But in the schematic it looks likes its only showing two diodes and ten 1Meg ohm resistors. By the way this is my first post I have been hanging around on the forum for a few weeks reading and researching finally deiced to register nice site i plan to stay.
Registered Member #1221
Joined: Wed Jan 09 2008, 06:17PM
Location: Odense, Denmark
Posts: 196
Actutally id say its abit of a under kill since as far i as know a 1n4007 is rated for 1kv only, meaning 10 of them would be 10kv which is exactly what the transformer is said to output, so its likely the diodes are gona be damaged. If not instantly then after some time of operation. But thats just me, so dont count on it.
Registered Member #480
Joined: Thu Jul 06 2006, 07:08PM
Location: North America
Posts: 644
Electrodiode -
If you are going to use a 9KV NST, the schematic you have shown cannot be used without some minor modifications, or at least some understanding of the different "grounds" involved. A 9KV NST will most likely have a centerpoint ground. Your schematic shows a ground connection just above C1; this is actually the "return" for the HV output of the generator. Make sure that you don't connect this "ground" to the AC ground, or to the NST case. If you did, you would be simply shorting out the output of 1/2 of your NST.
Registered Member #540
Joined: Mon Feb 19 2007, 07:49PM
Location: MIT
Posts: 969
You would have to have a high enough input voltage so that the spark gaps will break down. I donno if this is needed but you could put more 1M resistors in series to increase the voltage rating on them.
Registered Member #690
Joined: Tue May 08 2007, 03:47AM
Location: New Jersey, USA
Posts: 616
A Marx generator must be fed with DC. NSTs are transformers and output AC, which is why the first schematic you posted included diodes. The second one is just the basic schematic for a Marx gen. It assumes you are using a DC power supply.
A Marx generator must be fed with DC. NSTs are transformers and output AC, which is why the first schematic you posted included diodes. The second one is just the basic schematic for a Marx gen. It assumes you are using a DC power supply.
Ah Ok i see now so i would basically need 10 diodes in series.
And the resistors and caps correct?
again thanks for your help. I have done research i just want to make sure i get my ducks in a row before i buy the parts.
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Question about a Marx generator
