This the Tone Generator circuit that interesting because of can control the sound has with the light. By use the integrated circuit NE555 be pillar equipment , which perform produce sound frequency in model Astable Multi vibrator or pulse generator. And use 25 ohm small-sized loudspeakers. For the equipment detects the light. I uses LDR [...]
A circuit surround sound simple.Circuit is created newness of the sound to a wider sound dimension.That the device R and C, to share the audio delay.
To get a new sound dimension.
When the switch S1 to select a location signal.The audio will pass to the surround speakers and left and right.The C1 and C2 act to [...]
Here is a simple audio amplifier circuit that is easy to build and has few components. This circuit is built around the LM386 (click for datasheet) audio amplifier integrated circuit, useful when you need to power medium sized speakers from a music player that can only drive earphones.
From left to right, the first part is [...]
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