Changing ammeter scale 1mA to 100uA
Here is the changing ammeter scale 1mA to 100uA. If you want to measure a high current on low full scale meter. How do you do? In simple way you can do. Read more
Meters & Detectors
4 Peak voltage tester circuits using op-amp and 723
If you want to check the peak voltage of the signal to change at any time. Measuring with a multimeter will not do it. We recommend this circuit. It may help you. Precision Peak voltage detector with a long memory time We use this circuit The op-amp IC number CA3140 is the main equipment, acts … Read more
OLD digital voltmeter circuit diagram using CA3162 and CA3161
This simple digital voltmeter circuit diagram is a saving, easy to use Because it is smaller than a typical circuit, I believe that after I presented this circuit. You will certainly like it. Note: Also this you can see these projects: Simple Digital voltmeter circuit using ICL7107 Digital multimeter circuit using ICL7107 This circuit can … Read more
Analog VU meter schematics
Let’s use two simple Analog VU meter schematics. If we take the amplifier connected to the speakers. It is very dangerous.If your amplifier has a higher power than the limits of the speaker. It may make a very bad sound. More important is the speaker and amplifier may be damaged.These circuits may help you! Simple … Read more
Simple Temperature Sensor using Diode 1N4148
Here is temperature sensor diode 1N4148 silicon type and 741- op amp, so easy. The Output to voltmeter. You will learn why diode becomes temperature sensor. Read more