This circuit for analog video signals was found in a March 1988 Radio Electronics. The Maxim integrated circuit can still be found.
This traditional crystal oscillator configuration can use any CMOS gate configured as an inverter. R1...
This circuit was found in an Analog Devices manual and can supply a 3 mA current or drain a 10 mA...
Found in Radio Electronics, this simple indicator circuit uses general-purpose transistors common today....