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Posts tagged burglar alarm circuit

Simple Alarm Circuit using 12C509

alarm circuit diagrams Simple Alarm Circuit using 12C509, 2N7000, 78L05

what type amplifier should used to see clear picture?

Onkar asked: we have two TV sets in my home. The first one is connected to dish antenna via set-top box. second one is connected to same set-top box by coaxial cable & it is far from it. so clear picture is not receiving. please help or give the circuit diagram for the amplifier.

STK084 Audio Amplifiers

STK084 Audio Amplifiers STK084 Audio Amplifiers circuit diagram This design is based on the 80 Watt Audio Amplifier, and was developed mainly to satisfy the requests of correspondents unable to locate the STK084 Audio Amplifiers. It uses the widespread STK084 1 IC but, obviously, its power output will be comprised in the 40W range, as […]

The Audio Circuit STK POWER AMPLIFIER using STK4112II

The Audio Circuit STK POWER AMPLIFIER using STK4112II

The Audio preamplifier with dual recording

The Audio preamplifier with dual recording using IC BA3420AL. The Audio preamplifier with dual recording using IC BA3420AL. It has an internal switch for switching between playback head, mic and radio input modes, and also includes a bias oscillator and regulated voltage source for radio use. All control is possible with one external switch, allowing […]

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