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Damping factor, and how an amplifier controls voice coil motion.
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Current Drive Improves Standard Optical Isolator Linarity For AC Audio Frequency Applications
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Simple Modification Allows Linear Potentiometer to Generate A Quasi Audio-Taper Logarithmic Response
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Toy Organ 2012-09-17
This circuit produces a tone according to the button being pressed.
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[B]Introduction and Overview[/B] The Secret Knock Detector project is a variation of Steve
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This is a microphone pre-amp which I designed for use with a SoundBlaster(TM) AWE 64 Value sound c
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This IC chip was designed specifically for use in power boosting applications in automobiles. It is
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Here's a signal injector for those of us like me who don't have a bench full of nice test equipment
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Here is the circuit diagram of a police siren based on NE55 timer IC. The circuit uses two NE555 ti
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Voice Scrambler 2011-01-13
With this circuit you can modify how your voice sounds by changing the pitch of your voice. This ci
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FM Transmitters 2010-10-29
I have quite a few so I decided to post many FM transmitter schematics.
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This simple telephone switching system is designed by Dr. Mustafa Kemal PEKER for training purpose
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Using a single cable such as speaker wire or doorbell cable, this circuit can be remotely positione
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Audio Notch Filter 2010-07-06
At first glance this circuit looks fairly complex, but when broken down,can be divided into high pa
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FM Transmitter (#1) 2010-07-06
This circuit is a simple two transistor (2N2222) FM transmitter. No license is required for this tr
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This circuit is a simple two transistor (2N2222) FM transmitter. No license is required for this tr
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Night Buzzer 2010-07-06
If you want revenge that won’t kill someone, just make them go insane, have I got the thing for y
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The current draw for this tracker is 3.7mA, so the 1.5V button cell will last awhile. What the heck
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AM Radio Receiver 2010-07-06
Here's a very simple AM Radio circuit I've designed couple of years ago. Don't know whether anybody
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