One tool for checking static electricity is Electroscope Circuit to Measure Electrostatic Charge. Static electricity happen when object have unbalanced electric charges and electroscope help to know if static electricity is there and it is how much; as it is just simple conductor. Also, when something touches it, then electroscope charge changes and react and […]
Simple Electronic Stethoscope Circuit
This Simple Electronic Stethoscope Circuit teaches us about how to make one type of stethoscope circuit. Normal stethoscope uses tube to listen small sound from body like heart and lung but this electronic stethoscope uses small electric parts to make sound more clear and loud. The circuit also help doctors and nurses hear better what […]
Acupuncture Point Locator Circuit
Acupuncture Point Locator Circuit is small device which helps to find special point on human body; in acupuncture thin needle goes inside our body part to reduce pain. Moreover, this is old medical method and these special body points called acupuncture point or just acupoints. People also think energy moves through body using these points, […]
Coffee Temperature Indicator Circuit
Ever burnt your tongue because of coffee too hot?; then this Coffee Temperature Indicator Circuit show how to make small circuit and which tells how hot coffee is! Here, it uses sensor to check temperature and then LED light up to say if coffee is good to drink or not; so now we can enjoy […]
Simple RF Field Strength Meter Circuit
To begin with, this Simple RF Field Strength Meter Circuit show how to make device to measure radio wave! Radio and mobile phone both use radio wave and this signal we cannot see, also this thing are helpful for radio fans, engineers and new people. Also, they can check how strong signal is in different […]
AVC Automatic Volume Control Circuit
This AVC Automatic Volume Control Circuit work like auto volume knob, as it hears the sound coming like music or talking and then change volume by itself. Also, if the music plays at a low volume, the circuit makes it louder and if the music becomes very loud, the circuit reduces the volume slightly. Hence, […]