FET used as a silencer tube headphone circuit


Posted on Dec 11, 2010

FET used as a silencer tube headphone circuit Field-effect transistor is shown as a headphone circuit silencer tube. L from the digital signal processing circuit, R audio signa


FET used as a silencer tube headphone circuit
Click here to download the full size of the above Circuit.

l to the headphone jack mute control circuit, Ql, Q2 are respectively connected to the drain of the field effect transistor input line L, R signal, when the control circuit sending to the silencer when the control voltage, Ql, Q2 is turned on, the L, R signal is shorted to ground, no signal output, MP3/MP4 is in mute state.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

voltage inverter
Telephone Intercom - DTMF
Low-pass filter
Ir-receiver
Simple Lie Detector Circuit
Stereo FM transmitter using BA1404
Bicolour LED flasher circuit
usb joystick
how to make simple frequency counter
ultrasonic electrostatic transducer for
Modulated Light Barrier
Automatic emergency lamp circuit



Top