This sound controlled lights circuit design is used to control the brightness of the lights attached to it in sync with the sound that is being capturated by its microphone. This electronic circuit ...

The audio-signal router in this Design Idea can automatically redirect cable connections between the audio equipment and an amplifier/receiver for dubbing or playback purposes without causing ...

[Alan’s] friend came to him with a problem. He loved listening to his scanner, but hated the volume differences between stations. Some transmitters would be very low volume, others would nearly blow ...