IC 741 | Electronic Project Circuits

Posts Tagged ‘IC 741’

Protects steal touch model by IC741

Contain divide this friends many you may face a problem economical. A steal the very. Today I then beg for to advise the circuit protects steal again model that interesting. It is model to touch , the system will work when , steal touch at the metal detects in your car. When you see the circuit may like ,because use the equipment that seek easy be IC 741 very the circuit has tall many rapidity. When human body which there is electronic signal flows through all the time , make that signal changes to come to at input change R4 to pin 3 of IC LM741 make it works cause Q1 and oval RY1 work with. The lead goes to are usable , friends fine VR1 for fix the rapidity has of the circuit. The detail is other see in the circuit has please yes.

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Be the first to comment - What do you think? Posted by admin - October 17, 2008 at 9:13 am

Categories: home alarm systems, Security Tags: do car alarms prevent theft, IC 741, touch alarm

Auto-Fan, automatic temperature control by 741

This circuit good idea, By Tony van Roon Form http://www.uoguelph.ca/~antoon/circ/auto-fan.html
He used the IC-741 to be base of circuit, for controller a speed fan, with automatic temperature control stye.

simple Circuit

to Read more

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Fire Alarm Using Thermistor

Be the first to comment - What do you think? Posted by admin - July 13, 2007 at 2:18 pm

Categories: Electronic Control Tags: Fan Speed Controller, heater control circuits, IC 741, Temperature control fan

Auto Charger battery 12V with PCB by IC 741

This circuit Auto Charger battery 12V will quickly and easily charge
most any lead acid battery. When the battery is fully charged,
the circuit Relay switches off and lights a LED.

circuit Auto Charger battery 12V (with PCB)

PCB Auto Charger battery 12V (with PCB)