Project: Simplest shocker - Page 7 - Electronic Circuits Projects Diagrams Free

Sceadwian · 24th January 2007, 03:17 AM

Hit the igniter a few times with a good cap to buffer it and there may be a duel here!

lcmvsv · 31st January 2007, 10:21 PM

Hi! I'm looking to build a shocker ( spark generator) for "decoration" purposes and not going out to shock a idiot. How long of a spark could be made using some of the circuits, etc. What are the schematics?
...and how would you calculate the distance of the spark?
Thank you

audioguru · 1st February 2007, 02:50 AM

I think a voltage of 10,000V will cause a spark of about 1cm long in fairly dry air.
A Telsa coil can make over 1million volts. You do the math to calculate the length of the spark.

Oznog · 1st February 2007, 07:14 PM

lcmvsv · 1st February 2007, 08:46 PM

woah, that's a high voltage to get such a little spark! so a 4cm spark would be 40,000V. k, so what transformers, capacitor, and relays could I use? plz not flyback :\

audioguru · 1st February 2007, 09:19 PM

A TV's flyback transformer operates at about 16kHz to produce 30,000V for a 32" colour TV. It has insulation to withstand such a high voltage.

An ordinary power transformer would produve a few hundred volts if it is used backwards.
An old audio transformer from a vacuum tube amplifier would produce maybe 600V if it is used backwards.
What else can make high voltages?

Sig239 · 2nd February 2007, 01:28 AM

LOL at Oznog!!!! I was just talking about that gesture today at work. I wonder if it means the same thing to you. Please do tell what it means to you.

Firnagzen · 3rd February 2007, 01:44 PM

Whee, high voltages.

A quick search on the internet and my brain turns these up:
Neon sign transformers (~5kV, a few mA)
Microwave oven transformers (~3kv, a few ma)
Oil burner ignitor transformers (beats me, I guess it's the same as MOTs)
Car ignition coils (dunno, but these things look cool. I've got one somewhere around...)
Van de graff generators (varies from a few kV to a million V, current miniscule)
Static
Those huge multiple storeys tall transmission towers just outside town. Yea, those...

The first 4 and last one are usually lethal, I guess.

And anyway, why not flybacks? Flybacks are the second easiest to get and build, with ignition coils the easiest.

Hero999 · 3rd February 2007, 02:28 PM

Quote:

Originally Posted by Firnagzen

Microwave oven transformers (~3kv, a few ma)

Incorrect, 0.5A or more, enought to kill you for sure!

**Nigel Goodwin** · 3rd February 2007, 04:18 PM

Quote:

Originally Posted by Hero999

Incorrect, 0.5A or more, enought to kill you for sure!

Yes, microwave oven transformers are high voltage, high current - almost certainly fatal!.

Firnagzen · 4th February 2007, 03:14 AM

Technically they're rated for a few mA, I think, but since they have lousy current limiting, you can draw 0.5A out of it.

But whatever, a few mA or half an amp- You're STILL dead, it's only how toasty you get.

By the way, more on that, flybacks CAN be lethal too, look up ZVS driver for flybacks, those things can push more than 100W or so into a flyback.

**Nigel Goodwin** · 4th February 2007, 09:17 AM

Quote:

Originally Posted by Firnagzen

Technically they're rated for a few mA, I think

You think WRONG! - they are rated for continuous use at high current.

Harry001 · 4th February 2007, 09:28 AM

I've been searching for a citcuit that can produce higher continuouse electricity from a battery.But this circuit can only produce a flash of elecricity.Do you have a circuit like that please?

Hero999 · 4th February 2007, 10:14 AM

Quote:

Originally Posted by Firnagzen

But whatever, a few mA or half an amp- You're STILL dead, it's only how toasty you get.

No, a few mA and you'll probably live but half an amp and you're almost certainly dead.

mitra2640 · 4th February 2007, 06:26 PM

hi I'm looking to build a shocker ( spark generator) too
please send me a circuit and schematics compilitly
thanks

Quote:

Originally Posted by lcmvsv

Hi! I'm looking to build a shocker ( spark generator) for "decoration" purposes and not going out to shock a idiot. How long of a spark could be made using some of the circuits, etc. What are the schematics?
...and how would you calculate the distance of the spark?
Thank you

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24th January 2007, 03:17 AM	#91
Sceadwian	Hit the igniter a few times with a good cap to buffer it and there may be a duel here! __________________ "Because I be what I be. I would tell you what you want to know if I could, mum, but I be a cat, and no cat anywhere ever gave anyone a straight answer, har har."

31st January 2007, 10:21 PM	#92
lcmvsv	Hi! I'm looking to build a shocker ( spark generator) for "decoration" purposes and not going out to shock a idiot. How long of a spark could be made using some of the circuits, etc. What are the schematics? ...and how would you calculate the distance of the spark? Thank you

1st February 2007, 02:50 AM	#93
audioguru	I think a voltage of 10,000V will cause a spark of about 1cm long in fairly dry air. A Telsa coil can make over 1million volts. You do the math to calculate the length of the spark. __________________ Uncle $crooge

1st February 2007, 07:14 PM	#94
Oznog	__________________ I thought what I'd do was I'd pretend I was one of those deaf-mutes.

1st February 2007, 08:46 PM	#95
lcmvsv	woah, that's a high voltage to get such a little spark! so a 4cm spark would be 40,000V. k, so what transformers, capacitor, and relays could I use? plz not flyback :\

1st February 2007, 09:19 PM	#96
audioguru	A TV's flyback transformer operates at about 16kHz to produce 30,000V for a 32" colour TV. It has insulation to withstand such a high voltage. An ordinary power transformer would produve a few hundred volts if it is used backwards. An old audio transformer from a vacuum tube amplifier would produce maybe 600V if it is used backwards. What else can make high voltages? __________________ Uncle $crooge

2nd February 2007, 01:28 AM	#97
Sig239	LOL at Oznog!!!! I was just talking about that gesture today at work. I wonder if it means the same thing to you. Please do tell what it means to you.

3rd February 2007, 01:44 PM	#98
Firnagzen	Whee, high voltages. A quick search on the internet and my brain turns these up: Neon sign transformers (~5kV, a few mA) Microwave oven transformers (~3kv, a few ma) Oil burner ignitor transformers (beats me, I guess it's the same as MOTs) Car ignition coils (dunno, but these things look cool. I've got one somewhere around...) Van de graff generators (varies from a few kV to a million V, current miniscule) Static Those huge multiple storeys tall transmission towers just outside town. Yea, those... The first 4 and last one are usually lethal, I guess. And anyway, why not flybacks? Flybacks are the second easiest to get and build, with ignition coils the easiest.

4th February 2007, 03:14 AM	#101
Firnagzen	Technically they're rated for a few mA, I think, but since they have lousy current limiting, you can draw 0.5A out of it. But whatever, a few mA or half an amp- You're STILL dead, it's only how toasty you get. By the way, more on that, flybacks CAN be lethal too, look up ZVS driver for flybacks, those things can push more than 100W or so into a flyback.

4th February 2007, 09:28 AM	#103
Harry001	I've been searching for a citcuit that can produce higher continuouse electricity from a battery.But this circuit can only produce a flash of elecricity.Do you have a circuit like that please?