This circuit is from a Radio Electronics from December 1964. The components are from the time and modern equivalents for transistors and diodes can be used.
We found this circuit in a 1968 Motorola publication. The circuit has a charge current of 16 A...
This code practice oscillator was found in an English publication from the 80's. The circuit can...
This sinusoidal oscillator is from the 1994 National Semiconductor Linear Applications Manual but...