This circuit was found in a 1977 Radio Handbook. The MOSFET supports an equivalent. Capacitor C must be low leakage.
Based on the Philips TDA3810N, this circuit was found in an 90s Electronics Now. The circuit has two...
This simple circuit does not use active components and uses a small speaker as a microphone. The...
This power amplifier configuration can be used in a public address system (ads) in the car. The...