Quick Question: IF vs Flyback Transformer

Hi Rovert, No the IF transformer will not have the proper primary to secondary turns ratio to make the circuit work. When I was a young delinquent I used to hollow out books and put a small buzzer in series with some batteries and the secondary of a 6.3 volt transformer. The primary would then have about 100 volts AC accentuated with a lot of spikes that were quite a bit higher. I would make a fancy cover for the book laced with tin foil and insulated top to bottom. On a small insulated portion of the cover I had a door bell button that I could push while fully insulated from the rest of the book cover. At one point I stood up in Math class and told our new, fresh out of the university, math teacher that on behalf of myself and the rest of the students I had a gift for him. I held out the book and as soon as he had a grip on it I pushed the button and lit him up. It was hilarious, but he was a really big guy and I had to run like heck to stay ahead of him so he could come to his senses and not hit me. Ah the good old days.

John

Thank you very much, but can I adapt this circuit to use a 4pin transformer? I have two from an emergency dc powered flourecent light. Here's what I have and the actual circuit below.

Hi Rovert,  Your hand drawn circuit holds the key to why only a flyback will probably work with this design. Notice on the side of the transformer with three connections the center connection is not really in the center. The short coil is an important aspect of the design and isn't typical on most transformers. Don't get me wrong, there are many ways to do just about anything with electronics and there are probably ways to incorporate different type transformers to get a similiar effect but without better component information on your salvage transformers you are much better off spending your money to get the correct component as opposed to the amount of work to redesign the circuit. The other issue in this redesign is if the original circuit is changed and the shock your circuit creates hurts someone you and whoever helps you modify the design will both be sued. If you stay true to the original design then it will be just you and the instructables designer. Hope this helps.

!!! Just a note of caution, Electrical shocks, even minor ones, can be dangerous to some people.

Interesting circuit, but john is right, you can build it up, and see what happens.

my best guess is that you would get about 24V out of it.

I think it will be safeish as long as the two contacts are no farther than 1\2 inch apart or so.

But like john said, an un-regulated shock at the wrong parts of the body

can/will cause serious injury.

My best guess would be to use a transformer off of a flash for a camera, but, idk for sure.

here is an idea of the deadliness of electricity at 120V

Flyback transformers are being called transductors, nowadays.  They have big cores because they are charged and discharged out-of-phase.  Their primary-to-secondary phasing is about 180 degrees away from that of a transformer.  Better to think of it as a two-tap inductor rather than an X-former.