Non-contact AC voltage detector circuit using CD4060
This non-contact ac voltage detector circuit, using digital IC CD4060 as main components and resistor and LED display only. it is use 9V battery as power supply.
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December 6, 2018
Include: Volt meters :: Sound level meter :: Analog vu meter :: Soil moisture meter :: Digital meter circuit diagram :: Temperature measurements :: Electronic measurement tools :: Frequency meters :: Best battery tester :: Transistor tester project
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The Op-amp IC tester circuit
The Op-amp IC tester circuit
This is an simple op-amp IC tester circuit that cheap and easy to build. for test many op-amp ICs fast check. for LM741, LM324, LM339, LM358, LM311 and more [...]
November 28, 2018
Temperature to voltage converter circuit using op-amp
Simple temperature to voltage converter circuit
This is a simple temperature to voltage converter circuit or an Electronic thermometer circuit there. Which will operate in a temperature range of 0 to 24 degrees Celsius (32 to…
November 28, 2018
2 Crystal tester circuits with PCB
This is Crystal tester circuit using NPN transistors as main. LED1 is light up when a crystal is good and simple oscillator circuit works.
November 23, 2018
Diode tester circuit diagram using 741
Diode tester circuit using IC-741 and LED
This Diode tester circuit can check the diode the good or bad and also can indicate its polarity. using op-amp 741IC and LED for display. [...]
November 22, 2018
Simple remote control tester circuit
This Simple remote control tester circuit so use this photo transistor is light receiver from remote control.If it is nice to have bias of transistor BC558
November 10, 2018
Complete Light meter circuit idea using diode
The light meter circuit using a general diode
Simple light meter circuit idea using normal diode as sensor, amount of light by voltmeter. Using op-amp-CA3140 and a few parts.
November 6, 2018