3 Tone control circuits using op amp NE5532
These are Tone control circuit using op amp - NE5532 or 4558 IC as low noise, with PCB layout, can adjust sound frequency and tone bass, treble, mid and..
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March 26, 2019
Figure1: Hum filter circuit using the electronic coil
15 Filter circuits using electronic coil
I love to collect a lot of circuits. A filter circuit is important in Electronics. I will show you many ideas of noise hum, high-low frequency and more. Some you will…
December 12, 2018
Simple long duration timer circuit
Simple long duration timer circuit
The Simple long duration timer circuit using OP-AMP, If build the RC timer only that long time delay we need too many resistors and capacitors may be error [...]
November 29, 2018
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
Voltage to current using op-amp and power transistor
To change the voltage to current
April 13, 2017
Wien bridge oscillator with FET
Wien bridge oscillator is sine wave oscillator. It can generate a big of frequencies. The oscillator has based on a bridge circuit, which compose four resistors and two capacitors.
February 27, 2017
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