The circuit is from Ferranti's 1974 transistor manual. Transistors are general purpose types, and the output waveform is rectangular. Components can be changed to other frequencies.
This circuit can be used to test zener diodes up to 25 V using a standard multimeter. The voltage...
This is perhaps the first PIC project to appear in a publication. The article is from Radio...
This circuit is from Motorola's Linear Databook from 1990. The integrated circuit used is no...