This circuit is from a 1968 Electronic Design. The characteristics of the output transformer are not given and the transistors are of the time. The circuit provides a power of a few watts.
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...