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### Author Topic: Free Electron Pump 1.0 Re-creation  (Read 13304 times)

#### lazybum

• Newbie
• Posts: 2
##### Free Electron Pump 1.0 Re-creation
« on: September 11, 2005, 07:48:42 PM »
I'm recreating the Free Electron Pump 1.0 by Jean Louis Naudin for a school project but i have little experience and knowledge about electrical circuitry.
But i got some help from my sis who studied electrical engineering for 2 years (but she's no guru either).

I just wanted to clarify as to what is the actual resistance of the resistors in this diagram. Ohm or Kilo-Ohm?
http://jnaudin.free.fr/images/fep10sch.gif
http://jnaudin.free.fr/html/fep01.htm (the actual page)

And can i use a step up transformer at 1380 V pulses (according to my sis) for the FEP generator. Please do not mind my sheer lack of insight in this area and help me out.

#### GM

• Jr. Member
• Posts: 84
##### Re: Free Electron Pump 1.0 Re-creation
« Reply #1 on: September 11, 2005, 10:09:16 PM »
It is common practice in electronic diagrams to omit the unit, when the value of the component has to be read as basic unit.

So all the values of the resistors without a unit should be read as "ohm".

Regards, Markus

#### lazybum

• Newbie
• Posts: 2
##### Re: Free Electron Pump 1.0 Re-creation
« Reply #2 on: September 12, 2005, 04:14:34 PM »
Thanx a lot for clearing that for me.
I do have another question, and that is with regard to the FEP transformer.
I want to purcharse a ready made HF transformer, but again, i'm pretty new to this electrical stuff besides some basic electrical experiments in school. *embarrassing*

My sister says its a step-up transformer. But ermm, once again i'm pretty unsure abt the specifications. I need to be sure of what i exactly need before going to the far-away electrical shop to get the stuff. Once again, please forgive my sheer lack of intelligence in this topic and thanks again!

#### GM

• Jr. Member
• Posts: 84
##### Re: Free Electron Pump 1.0 Re-creation
« Reply #3 on: September 12, 2005, 05:49:24 PM »
I'am not sure, but if you want to supply your circuit with 12 volts instead of 230/110 volts, you may look for a mobile neon-bulb like this or so.
I think this light must have any kind of high voltage tranformer. @all: If I am wrong, please let me know please.

You find it maybe for a few bucks [put in your local currency]  at low-budget or 2nd hand stores.

I'am looking also for a cheap high-voltage transformer this days and this kind of mobile light is my target. Unfortunately my search was still not successfull.

Regards, Markus

#### GM

• Jr. Member
• Posts: 84
##### Re: Free Electron Pump 1.0 Re-creation
« Reply #4 on: September 15, 2005, 09:50:17 PM »
Hi Lazybum,

today I found a good high voltage transformer for my purposes. (see picture)

I found a "magic flash ball" (dont know the right english description for it) at a low budget store ("bargain-store"? german: "Restpostenmarkt").
I got this thing without warranty for 3 euro :-) and inside the case there is a high voltage transformer and a sqare wave generator.

Maybe it is exact what you need!

Bye Markus

edit: By the way: I got also a well running stroboscope-flasher for 1 Euro in this store. Including a 10 Watt Xenon-flash bulb, high-voltage diodes, a well dimensioned power-capacitor and some other components. )  Only 1 Euro for the whole thing! I am shocked (look for the price of an single Xenon-bulb)

#### Kator01

• Hero Member
• Posts: 894
##### Re: Free Electron Pump 1.0 Re-creation
« Reply #5 on: September 16, 2005, 12:26:25 PM »
Hi Folks,

yes some electronic parts become very cheap. Your pic shows a flyback-transformer( Zeilentrafo) which you can get at every dump ( Wertstoffhof ) Look for old PS-Monitors or TV.

I recently got a 12-torus-transformer( Ringkern-Trafo) 100 Watt for 5 ?. I could not believe it either.

Kator01

#### GM

• Jr. Member
• Posts: 84
##### Re: Free Electron Pump 1.0 Re-creation
« Reply #6 on: September 16, 2005, 02:35:39 PM »
Kator01,

what are the odds!
A few days ago I bought a used 200VA toroidal transformer on ebay for 1 EUR! Okay I payed 8,90 EUR for shipping, but who cares?