Hello everyone!
I'd like to build a RFID Zapper, really simple device, but still i've got some questions.
The zapper circuit looks like this:
RFID Zapper
I've got a nice 150µF 385V capacitor from a TV:
Where should i connect the negative? To the middle lead (at the center of the capacitor)?
Also can i, instead of the diodes, use a 2A bridge rectifier, or is ~230V too much for that bridge? The leads are close, like 3mm apart.
Can i change the resistor value? (i have some 1MΩ 1Watt resistors i could use instead) Also why is the resistor "before" the bridge? I think it should be put "after" the bridge, connected to the negative lead of the capacitor, coil and, from the other side, to the negative lead of the bridge.
Thanks in advance!
I'd like to build a RFID Zapper, really simple device, but still i've got some questions.
The zapper circuit looks like this:
RFID Zapper
I've got a nice 150µF 385V capacitor from a TV:
Where should i connect the negative? To the middle lead (at the center of the capacitor)?
Also can i, instead of the diodes, use a 2A bridge rectifier, or is ~230V too much for that bridge? The leads are close, like 3mm apart.
Can i change the resistor value? (i have some 1MΩ 1Watt resistors i could use instead) Also why is the resistor "before" the bridge? I think it should be put "after" the bridge, connected to the negative lead of the capacitor, coil and, from the other side, to the negative lead of the bridge.
Thanks in advance!