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Posts tagged BF494

Control Jammer Circuit Module

Control Jammer Circuit Module Android Signal Jammer – silent mode jammer app using LM555, MRF947 Mobile jammer circuit design using BF494 Mobile jammer circuit use only in GSM1900 with frequency from 1930 MHz – 1990 MHz. The GSM1900 mobile phone network is used USA, Canada TV Remote Control Jammer  using 555, C829 This circuit functions […]

Power supply and motor control circuits – Tip31 circuits

AC voltage regulator and motor control circuits – BC182, Tip31 circuits Motors and drivers Tip31 circuits Circuit diagram of the motor control it, serves to control the motor, the electric door, so there are 2 switch is used to start the motor rotates clockwise or opposite direction, meaning the switch to open S1, and S2 […]

How to Repair the volume pot is dirty or worn?

How to Repair the volume pot is dirty or worn? Usually the speakers crackle crackle or rough voice when playing the The cause is dirty or worn pot, so that the audio signal does not have constraints in the rules. How to Repair the volume pot is dirty or worn, the rotating movement of a […]

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