This basic circuit is simple to create and the tool's are not critical . Most of them can be found in your junk parts...
Friday, June 30, 2017
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Basic IC MonoStable Multivibrator
This is the simple Basic IC MonoStable Multivibrator circuit diagram.Basic LM555 Timer CIRCUITPart ListC2 = .01ufIC1 = LM555 TimerSWI = n.o. momentary switchR1 and...
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Automatic 9-volt Battery Charger
Good care given to your NiCad batteries will ensure a long life. However, they do need to be handled and charged with special care....
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Led Flasher with the LM3909 IC (streampowers)
IntroductionThe LM3909 is an integrated circuit (IC) which will flash a light-emitting diode (LED). Using only two extra components and a battery, the circuit...
Thursday, June 29, 2017
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Yes-No Indicator Has Zero Standby Current
This circuit produces a random "Yes" or "No" with a single button press - indicated by the illumination of a red or green LED....
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Maximum Minimum Voltage Indicator
This circuit indicates which of three voltages in the range from about about -4V to about +4V - at A, B and C...
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Water Level Indicator Circuit
Simple, two-wire, remote monitoring unit, Three-LED level display, 9V battery poweredThe whole project was developed on a friend's request. Its purpose was to remotely...
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Modem Off Indicator
Modem Off Indicator Circuit Diagram. The modem off indicator is intended especially for serious Internet surfers. It will be seen that the circuit of...
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Audio Clipping Indicator
Detects clipping in preamp stages, mixers, amplifiers etc., Single LED display - 9V Battery supply unitThis circuit was intended to be used as a...
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110 and 220V AC LED Voltage Indicator
110 and 220V AC LED Voltage Indicator Circuit Diagram. Useful for power lines control, Simple, transformer less circuitry. This circuit, designed on request, has...
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Clipping Indicator For Audio Amplifiers
A clipping indicator is a useful accessory on any audio amplifier. It indicates when the amplifier has reached its limit and is clipping the...
Saturday, June 24, 2017
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Audio Pre-Amplifier
Simple Audio Pre-Amplifier This simple circuit provides good gain to too audio singnals . Use it in main of an RF oscillators to make...
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Alternating ON-OFF Control
Use this circuit instead of a standard on-off switch. Switching is very gentle. Connect unused input pins to an appropriate logic level. Unused output...
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Simple Electronic Lock
Simple Electronic Lock Circuit diagram. There are six (or more) push switches. To 'unlock' you must press all the correct ones at the same...
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Smart Receptionist With Smartlock System
Presented here is a security system that lets you see a visitor while EFY Tested your main office door is locked. If you are...
Thursday, June 22, 2017
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IoT Based Notification System Using Android App
Presented here is a smart notification system for a door sensor, motion detector, fire alarm and doorbell using Raspberry Pi (RPi) and Pushover app....
Tuesday, June 20, 2017
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Simple Bio-Feedback Circuit Diagram
Feed-back, means a reaction to a stimulus, I will explain, the concept is simple, but explanation is a bit troubled, bio-feedback is to electronically...
Monday, June 19, 2017
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Dual-Channel Active AC Analogue Probe Circuit Diagram
This is a Dual-Channel Active AC Analogue Probe Circuit Diagram. It is suitable for oscilloscopes, multimeters and other analogue measurement equipment.When experimenting with AM...
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