This circuit was found in a 73 magazine for radio amateurs of the 90s. The circuit uses two types of indicators, the diodes are for general use. The power supply is 5 V.
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...