2: Meter Receiver

This temperature meter uses a Harris 7106 IC as the heart of a low cost, accurate temperature meter. LCD 3-1/2 digit readout. All of the active circuits are in this one, versatile chip. In addition to temperature functions, the board includes an area for

This LCD panel meter is a very flexible design that can be customized to your own VOLT meter or AMP meter needs. It may be customized to measure any voltage range, standard or not. Or you can customize it to measure input from a transducer; full details a

Schematic for an electronic audio level VU meter that uses LED's to display the volume/audio levels.

Aircraft radio receiver circuit that receives aircraft radio signals in the 220-400 MHz band. This kit is small and simple to build, and it's a lot of fun to listen to aircrafts!

Using ultrasonic techniques, this solid-state design has no moving parts.

Schematic, circuit design and comprehensive details about a SUPRX FM radio receiver, featuring high sensitivity and very low noise and distortion. [PDF]

This 3-transistor radio receiver circuit is capable of receiving radio signals in the 5-15 MHz Shortwave band, and apparently costs on $10 to build.

This LCD panel meter is a very flexible design that can be customized to your own VOLT meter or AMP meter needs. It may be customized to measure any voltage range, standard or not. Or you can customize it to measure input from a transducer; full details a

Training course of 56 pages is divided into 9 lessons; Audio Amplifier, AM Detector, AM IF, AM Amplifier, Amplifier, AM Mixer & Oscillator, FM Detector, 1st FM IF, 2nd FM IF, FM RF Stages. Superheterodyne receiver of standard AM (amplitude modulated) and

This is a circuit that will broadcast CD quality sound to you FM Walkman, home stereo or automobile radio. It produces a strong signal that will generally cover the average home and yard. It is stable enough to use even with a digitally tuned FM receivers