Found elsewhere in this section, but from other sources, this circuit is from a 1964 Electronic Design. The transistor is from the era and the power voltage depends on this component.
This common configuration is one of many that can be found in this section using the 555. The...
This circuit converts signals from the longwave band of 350 kHz to 500 kHz to 4.35 to 5MHz. The...
This amplifier was obtained in an Electronics Now based on the LM1875. The circuit must be powered...