Wiring circuit

Cell phone jammer schematic diagram

A admirable diy gsm jammer or adaptable corpuscle buzz jammer schematic diagram for use alone in GSM1900 with abundance from 1930 MHz to 1990 MHz. The GSM1900 adaptable buzz arrangement is acclimated by USA, Canada and best of the countries in South America.

This corpuscle buzz jammer is not applicative for use in Europe, Middle East, nor Asia. The GSM jammer ambit could block adaptable buzz signals which works on GSM1900 band, additionally alleged DCS.

6Volt Gel Cell Charger Circuit Diagram

This Circuit needs a adapted 10V-DC advanced end able of bartering 2 Amps. Starts the allegation aeon at 240mA and at abounding allegation switches automatically to a float action (trickle charge) of 12mA.

The capacitors are the bowl 50V (or better) type. Switching transistor Q1 is a NPN, Si-Power Output/SW, with a TO-220 case and can be replaced with a acceptable acting like the NTE291, ECG291, etc.

Timer/Oscillator U1 is a 8-pin NE555V and can be replaced with a NTE955M or ECG955M.

Resistors R4, R5, R6, and R7 are 1% metal blur types. They may not be accessible at your bounded Radio Shack/Tandy abundance and accept to be ordered in. Try Electro-Sonic or Newark Electronics accumulation stores.

Part List
Resistors are carbon, 1/4 watt, 5% tolerance, unless otherwise indicated.

 R1 = 22 ohm, 1W C1 = 0.1µF, ceramic
R2 = 270 ohm C2 = 0.1µF, ceramic
R3 = 220 ohm D1 = 1N4001
*R4 = 715 ohm, 1% Q1 = TIP31A, B, C (or equivalent)
*R5 = 3.57K, 1% U1 = NE555V (or equivalent)
*R6 = 1.40K, 1% S1 = Toggle switch, ON-OFF
*R7 = 1.47K, 1%