Unijunction metronome (CB21701E)

This traditional metronome circuit is powered by voltages from 9 to 12 V and output drives a common speaker.

Maxim MAX20094 and MAX20095 Battery Chargers
Maxim MAX20094 and MAX20095 Battery Chargers Maxim Integrated offers through Mouser Electronics high...
Kelvin Thermometer (CB15929E)
This circuit suggested by Intersil, provides a Kelvin scale of 3 and a half digits in a 7106, with...
Video switch (CB21318E)
Found in National Semiconductor documentation from the 1990s, this circuit switches video signals to...