This circuit for 3.3 V logic circuits has a 5 V input and the maximum output current is on the order of 1 A. The circuit is from a Linear Technology manual.
In this circuit the CA3140, an operational amplifier, is used as a comparator with the zener diode...
This linear LED scale circuit was found in the February 1992 issue of Radio Electronics magazine. Note...
This amplifier stage without an output transformer was found in Radio Electronics magazine from...