This circuit was found in a British documentation from 1969. It can be implemented with modern transistors. The pass band is 6 MHz.
This is the basic configuration of a voltage comparator with the Norton LM3900 amplifier. The...
3KSMC21AH 3000W Transient Suppressor from Taiwan semiconductor Taiwan Semiconductor is making...
This constant current circuit was found in the October 1993 Electronics Now magazine. The current can...