High Voltage Ringer
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High Voltage High Current Power Supply
The circuit can produce about 250-500mA at 2KV, depending on the transformer. For C1, you can use the capacitor out of an old microwave. This circuit is mainly provided as a demonstration of using commonly available parts for something uncommon....
Single Zone Alarm
A single zone alarm circuit with entry and exit delay and other facilities. The circuit features automatic exit and entry delays, timed bell cut-off and system reset. It has provision for normally open and normally closed switches and will suit...
Capacitor-discharge-high-voltage-generator
A step-down transformer T1 reduces the incoming line voltage to approximately 48 Vac, which is then rectified by diode D1. The resulting direct current charges capacitor C1 through a current-limiting resistor R1 to a voltage level set by R4. When...
Ultra high voltage generator
By repetitively charging and discharging a capacitor through the primary winding of an induction coil with high voltage, an ultra-high electromotive force (emf) is induced in the secondary winding. Switching is performed by a triac, which is triggered by a...
HV REGULATOR WITH FOLDBACK CURRENT LIMITING
A TMOS MTM7N45 (Q2) functions as a series pass element in a linear high voltage supply that accepts +275 V unregulated input and produces a regulated output of 250 V, incorporating foldback current limiting. A 15 V zener diode, D1,...
High Voltage Power Supply for Valve Preamplifiers
The amplifier feeding the final amplification stage operates with unstabilized voltage. The output stage, utilizing push-pull operation, exhibits significant rejection of the supply voltage. However, the earlier stages do not provide the same level of rejection, resulting in unwanted noise....
Buzzer Circuit
This project involves connecting the positive terminal of the battery to the positive lead of the buzzer and the negative terminal of the battery to the negative lead of the buzzer. Typically, the positive lead of the buzzer is red,...
High Voltage Stun Guns
This device generates high-voltage pulses that disrupt muscles and the nervous system, causing mental confusion in anyone who comes into contact with it. It can be utilized against aggressive animals or attackers; however, it is important to note that this...
High Voltage Stun Gun
This device can be used against aggressive animals or attackers; however, it is important to note that it may be illegal in certain states.
The device in question is designed for personal protection and can serve as a deterrent against aggressive...