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NE555 Basic Monostables – Circuit Schematic
NE555 Basic Monostables
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Magnetic Guns – Circuit Schematic
Magnetic Guns
IC1 is a 555 timer in astable mode, sending approx. 10 ms pulses to decade counter IC2. IC2 is continually reset through R3, until pin 15 is taken low through t...
Digital Stopwatch 0-60secs – Circuit Schematic
Digital Stopwatch 0-60secs
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Tan Timers – Circuit Schematic
Tan Timers
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Solid State Power Controllers – Circuit Schematic
Solid State Power Controllers
The circuit is built around two 555 timer ICs. U1 and U2. U1 is wired as a variable duty cycle oscillator with a constant time period of around 0. 1 second. Dut...
Commodore 64 Reset Logic – Circuit Schematic
Commodore 64 Reset Logic
U20 is a 556 timer configured as a one shot multivibrator. The output pulse width is determined by the size of R34 and C24. Pulse width = 1. 1 x R34 x C24 =. 5 ...
NE555 Astable Multivibrator Frequency and Duty Cycle Calculator – Circuit Schematic
NE555 Astable Multivibrator Frequency and Duty Cycle Calculator
This calculator computes the resistors and capacitors for a NE555 timer chip, which has been configured as a astable multivibrator (oscillator), or square wave ...
Monostable multivibrator – Circuit Schematic
Monostable multivibrator
In a monostable multivibrator, one of the state is absolutely permanent i. e, stable and the other one is temporary i. e, quasi-stable. When an external trigger...
4060IC For Timed Beeper Electronic – Circuit Schematic
4060IC For Timed Beeper Electronic
This circuit shows about 4060IC For Timed Beeper Electronic Circuit Diagram. Features: suitable for table games requiring a fixed time to answer a .....
Go-No/Go Tester Circuit With 555 Timer IC – Circuit Schematic
Go-No/Go Tester Circuit With 555 Timer IC
This circuit shows about Go-No/Go Tester Circuit With 555 Timer IC. Features: more advanced unit with a precise timed testing procedure.  .....
555 Timer IC For IR Detector Circuit – Circuit Schematic
555 Timer IC For IR Detector Circuit
The following circuit shows about 555 Timer IC For IR Detector Circuit. Features: duty cycle of 0.8mSec, frequency of 120Hz and 300 mA peak .....
555 Timer IC For RF Sweeper – Circuit Schematic
555 Timer IC For RF Sweeper
The following circuit shows about  555 Timer IC For RF Sweeper. Features: used a 1N4004 Diode, JF1OZL uses a pot for a fine frequency control .....
Cat And Dog Repellent Timer – Circuit Schematic
Cat And Dog Repellent Timer
The following circuit shows about Cat And Dog Repellent Timer Circuit Diagram. Features: high output ultrasonic transmitter, uses a standard 555 .....
NE555 Timer For Electronic Scooring Game – Circuit Schematic
NE555 Timer For Electronic Scooring Game
The following circuit shows about NE555 Timer For Electronic Scooring Game Circuit Diagram. Features:The circuit comprises a timer IC, with a .....
Schematic Diagram Of LED Sequencer Based On The 555 Timer IC – Circuit Schematic
Schematic Diagram Of LED Sequencer Based On The 555 Timer IC
The following circuit shows about Schematic Diagram Of LED Sequencer. This circuit based on the 555Timer IC. Features: 555 timer circuit to debounce  a mechan...
555 Timer IC For Tachometer Circuit Project – Circuit Schematic
555 Timer IC For Tachometer Circuit Project
The following circuit shows about Tachometer Circuit Project. This circuit built based on the 555 Timer IC. Features: monostable IC, voltage .....
Asymmetric Timer Circuit With 7555 IC – Circuit Schematic
Asymmetric Timer Circuit With 7555 IC
The following circuit shows a timer circuit with independent mark and space periods. This circuit based on the 7555 IC. Features: output high is calculated by T...
NE555 IC For Voltage Doubler Circuit – Circuit Schematic
NE555 IC For Voltage Doubler Circuit
This following circuit shows a voltage doubler using NE555 timer. This is a simple project. The NE555 IC is wired as an astable mutivibrator .....
Games Timer Circuit With 4060 And 4017 IC – Circuit Schematic
Games Timer Circuit With 4060 And 4017 IC
This is a games timer circuit diagram. When the games timer is RESET, two things must happen. The 4017 counter must go back to zero and the 4060 .....
British Police Car SirenCircuit With 555 Timer IC – Circuit Schematic
British Police Car SirenCircuit With 555 Timer IC
This circuit displaying  the sound generator which will simulate British police car siren. The circuit is built using 2 pieces of timer IC 555 to .....