Hello,
I have been messing with a 555 IC and a 220:1 transformer trying to get a high voltage of about 1kV-2kV. Not working out to well. Insted of a 555 IC I am going to try to just use some transistors, caps, etc.
I found the circuit below. Just a LED flasher. I have it working properly on a breadboard. When I swap out the 10uF cap and put a lower value the LED flashes at a higher Hertz. 10uF is about 1Hz.
From the values in the circuit, how do I calculate the Hz the LED will blink at? (RC time constant or something lik that?)
Also, do you think it would be possible to hook up my small transformer from a camera flash where the LED is and create the high voltage I desire :twisted: . (Low mA )
I would need to change resistor values for more current and use a formula to get 60Hz. (what is the formula) :?
I don't know exactly what Hz the camera flash uses.
would really appreciate some help.
thanks,
George L.