Hartley for 1 MHz (CB25588E)

This oscillator was found in the July 1993 Electronics Now magazine. The coil is wound with 28-wire in a 0.5 cm shape.

Charger & Regulated Adapter Nicad (CB1212E)
This charger for currents up to 100 mA was found in a 1980 publication. The transistor could be...
High Stability Voltage Reference (CB1211E)
In the figure we have a high stability voltage reference, providing a voltage of 10 V at the...
Workbench symmetrical power supply (CB5871E)
This circuit is from old documentation, but can be adapted to use modern components. Power...