4093 Sine Square Converter (CB26335E)

Found in a Popular Electronics from the 90s, this circuit operates up to about 5 MHz input.

Remote Turn On (CB5944E)
This circuit, which appears from other sources in this section, allows you to control a load...
CB15908E Photodiode Amplifier (CB15908E)
This circuit is suggested by National Semiconductor and has an excellent gain, for a photodiode as a...
Neon Flasher (CB20941E)
This simple expandable circuit was obtained from a Popular Electronics from the 80's. The supply...