This circuit is from the 1990 Motorola Linear Databook, which can be developed with more modern equivalent operating systems. The 1 uF capacitor should be of good quality polyester with small leaks
This audio oscillator circuit was found in a 1992 publication. In the original article it is...
This low displacement circuit was found in American documentation from the 90s. Operational...
This crystal oscillator uses a common transistor and its frequency depends on the crystal used. We...