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Power supply filter with increased protection

The article proposes a simple surge protector that will significantly reduce the likelihood of damage to household radio equipment from high-voltage impulse noise in the network. 230 B / 50 GC. The proposed power filter, by the level of protection they provide, In most cases, will be much more effective, what filters, embedded… Continue Reading

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Automatic monitor switch

Automatic monitor switch

The objective of this device is to, to turn off the monitor (TV set), when composite video (CVBS) is absent. Instead of, to keep the screen black, device just turn it off. Also, the device will automatically turn on the monitor, when the image appears. Composite video (CVBS – Compo-Video Video Baseband… Continue Reading

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audio compressor “One Knob” on-chip THAT430

Audio compressor & quot; One Knob" on-chip THAT430

Audio compressor is the main device, used in the processing and recording of audio signals. In general, audio compressors have a lot of manipulation of elements, through which sound can strongly interfere with the despread signal. In many situations, these functions are not needed. Often need a simple compressor… Continue Reading

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The timer for the stairway lighting

The timer for the stairway lighting

The device is intended to illuminate the staircase. The switch after the power supply connection (230 AT) It does not include light bulb, and expects pressing. the lamp is turned around only after pressing the button 3 minutes. If the button is pressed again, when the light is on, light is turned off.… Continue Reading