5W Amplifier with LM383 (CB25309E)

This circuit for the car was found in the April 1990 Radio Electronics magazine. The speaker is 4-ohms.

Automotive Inverter 25 W (CB7179E)
We found this circuit in a 1968 Electronics World. The transistors are from the era and...
555 Oscilloscope Time Base (CB25540E)
This circuit, which generates a linear sawtooth signal, can be used in a frequency-band...
Field Strength Meter (CB1414E )
The instrument of this field strength meter, from a 1970s publication, can be a 200 uA...