This simple radio circuit is in essence a crystal radio having an audio amplifier that is definitely pretty sensitive and obtains a number of powerful programs in a given area by […]
TV Remote Control Tester Circuit
Here is a straightforward TV remote control tester circuit that anyone can use to check TV and VCR remote handsets. The infrared sensor module generates a 5 volt logic pulse […]
Sound Decibel Meter Circuit
The sound decibel meter circuit shown underneath reacts to audio air pressure concentrations from approximately 60 to 70 dB. The sound is sensed by an eight ohm loudspeaker, intensified by […]
AC Mains Current Detector Circuit
This AC mains current detector circuit identifies current levels within one of the AC mains supplies with the aid of an inductive pickup sensor (L1) made using a one inch […]
Simple 1 Watt LED Driver Circuit
Here is an illustration of this efficiently operating a Simple 1 Watt LED Driver Circuit from a 12 volt battery power implementing a buck converter. The LED may perhaps plainly […]
Small Transistor Amplifier Circuit
The following is a small transistor amplifier circuit much like you will probably find in a compact transistor car radio. The source stage is biased to ensure the source voltage […]