This circuit was found in a 1968 General Electric documentation. It has an input impedance of 2 M ohms and excites a load of 16 ohms. The integrated circuit of the time is the PA237.
This circuit was found in the Optoelctronics Sourcebook from Texas Instruments. The circuit has a...
With this preamplifier it is possible to use a small speaker as a microphone. The circuit is also...
This circuit can be used as a clok in digital applications. Power supply is 5-V and the pins for...