Project: Simplest shocker - Page 10 - Electronic Circuits Projects Diagrams Free

Hero999 · 18th December 2007, 01:23 AM

I agree, that's more than enough to get zapped.

audioguru · 18th December 2007, 02:45 AM

I wonder what 720V tastes like??

Ambient · 19th December 2007, 04:56 PM

I wanted to punch him for being dumb, but he is bigger than me lol. They are lucky their skin has a few M ohms resistance each. I don't think all of them were fresh, they were taken out of wireless mics. But if you leave alkaline sitting they seem to recover some charge. I have re-used dead batties plenty of times. They were lucky.

Sandeep_$tomar · 15th January 2008, 03:29 PM

nice project

Krumlink · 15th January 2008, 04:44 PM

Quote:

Originally Posted by audioguru

I wonder what 720V tastes like??

Tastes like PWNAGE

If you take a flash board from a disposable camera (I have about 20 now

) and run it with no load (no cap), it can easily generate up to 1kV (the polaroid ones) and make teh transformer run hot

HURTS.

j.friend · 26th June 2009, 10:56 AM

Quote:

Originally Posted by Nigel Goodwin

The relay switching ON and OFF produces AC, this is a VERY old circuit (pre semiconductors) - such devices were used to power valve car radios long before transistors became available. They were called 'vibrators', they came in two types - asyncronous (similar to the circuit above, and requiring a rectifer on the output), or syncronous (these had extra contacts for the output side as well, and didn't require a seperate rectifer, the extra contacts reverse the output in sync with the polarity changes).

WW2 radios used similar devices, or even rotary converters - a low voltage motor driving a high voltage dynamo.

In fact the actual circuit itself is even older than that, it was used in Victorian times as a party trick - known as 'shocking coils'. People stood in a big circle holding hands, with those at the ends of the circle each holding one of the contacts.

We actually did this at junior school in the early 1960's! - imagine the uproar if you tried to do it now!.

Lol, we actually did this in our physics class a couple of weeks ago. The teacher brought in an old crank driven generator orignally used to charge REALLY old phones. So we all wet our palm and stood in a circle holding hands and he cranked the handle giving us all a shock.

that was ok, hurt a little until someone went and got a cordless drill, only me and another bloke were game enough to try it and held hands and the electrodes and got a massive shock that had our arms tingling for ages.

twas fun

trennonix · 29th July 2009, 06:48 PM

hey,
i made that circuit, without the transformer and connected it to an oscilloscope driven by the soundcard of my PC to get an idea of the frequency
well, it said that the relay is vibrating at 480Hz!
Is that even possible?!
i was expecting something under a 100

and KrumLink i once fried my digital camera (just the flash unit) after shorting the main capacitor with a screwdriver

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18th December 2007, 01:23 AM	#136
Hero999	I agree, that's more than enough to get zapped. __________________ I do not answer private messages asking for help because no one else can: benefit from advice I may give or correct me if I'm wrong. Please ask on the open forum if you have a question and I'll be happy to help, if I know the answer.

18th December 2007, 02:45 AM	#137
audioguru	I wonder what 720V tastes like?? __________________ Uncle $crooge

19th December 2007, 04:56 PM	#138
Ambient	I wanted to punch him for being dumb, but he is bigger than me lol. They are lucky their skin has a few M ohms resistance each. I don't think all of them were fresh, they were taken out of wireless mics. But if you leave alkaline sitting they seem to recover some charge. I have re-used dead batties plenty of times. They were lucky.

15th January 2008, 03:29 PM	#139
Sandeep_$tomar	nice project

29th July 2009, 06:48 PM	#142
trennonix	hey, i made that circuit, without the transformer and connected it to an oscilloscope driven by the soundcard of my PC to get an idea of the frequency well, it said that the relay is vibrating at 480Hz! Is that even possible?! i was expecting something under a 100 and KrumLink i once fried my digital camera (just the flash unit) after shorting the main capacitor with a screwdriver Last edited by trennonix; 29th July 2009 at 06:52 PM.