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
Simple function generator using op amp LM1458
This is function generator using op amp. As usual the function generator will be expensive and difficult.However, this is a simple circuit with only two ICs. This circuit is suitable…
September 19, 2011
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