This 455 kHz IF calibration circuit uses a 4,096 MHz crystal. The circuit can be powered by voltages from 5 to 9 V.
This circuit was obtained in a Motorola manual, but it applies to almost any operational...
Found in a 1970 EEE this circuit emulates a zener diode whose voltage can be set to R2. Power...
This circuit different from the timer was found in an English publication from 1978. The circuit uses...