Is eeZeeAmp awesome for breadboard audio projects? Why yes, it is.
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If you're working on breadboard projects that generate audio and need amplification, then eeZeeAmp can do it and save breadboard space, too. Designed to eliminate ground loops and maximize fidelity w…
Read More…If you're working on breadboard projects that generate audio and need amplification, then eeZeeAmp can do it and save breadboard space, too. Designed to eliminate ground loops and maximize fidelity while keeping costs down, you may be surprised to hear how nice (and loud) an LM386 can sound.
Quickly and easily add clean audio amplification to your next project with eeZeeAmp.
Install a 100K potentiometer, such as eeZee Potentiometer, adjacent to the 3 Vol pins on the board.
Pins 1 and 8 provide gain control. With no external components, gain is set to 20 (26 dB). For full gain of 200 (46dB), bypass the pins with a capacitor (10uF, for example).
If you want to control gain between 20 and 200, put a resistor in series with the capacitor. Or, you can capacitively couple a FET from pin 1 to ground for electronic gain control. For details see the documentation.
I recommend an 8 ohm speaker. The wattage depends on voltage supply input. At 6V, use a 0.4W speaker. 9V use 0.8W. 12V use 0.9W.
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