Obtained from an English publication in the 1980s, when a weather station operated in that country at 60 kHz, this circuit employed only two general-purpose transistors.
The signal injector illustrated in the figure uses a single integrated circuit and generates...
This CMOS circuit was found in a Popular Electronics from the 80's. The circuit consists of a...
This conventional oscillator can generate signals from 8 to 30 MHz depending on the crystal used....