Astable 555 (CB21101E)

This 50% duty cycle configuration was found in a Popular Electronics from the 1990s. The operating frequency is given by C1.

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...