This compact power supply can be used on the workbench for up to 1 A load. The transformer has 1 A secondary current. The integrated circuit must be mounted on a heatsink.
Found in a 1964 CQ magazine this circuit consists of an automatic telegraphic key, providing the...
Found in a 1967 American electronics magazine, this circuit has an input impedance of 2000 ohms....
This circuit can generate signals from 80 to 800 Hz with an amplitude of 0.3 V. We find it in a...