This circuit is suggested by National Semiconductor in its Linear Applications Handbook. The LM3909 integrated circuit consists of a very low consumption oscillator with a power supply of 1.2 V.
This circuit, found in 1980s documentation, produces a rectangular signal of the same frequency as the...
The purpose of this circuit from a 1995 publication. Its purpose is to alert a person when he...
This simple transmitter for the citizen range was obtained in a 1983 publication and has only one...