This 50% active cycle TTL clock generates signals from 4 to 20 Hz. Its power must be supplied with 5 V and other frequencies can be generated with capacitor replacement.
This circuit generates a 1 MHz signal for general equipment calibration. The circuit is from an...
Disabling this circuit from a 2002 documentation can only be done by pressing 4 keys in a correct...
This ultra-low distortion driver was found in 80's Analog Devices documentation. The circuit has a...