Introduction: DIY Class a Amplifier
Hi, today I will share with you my little amplifier, is not very powerful but I love it.
275k, 0,1k, 450k, 37Ohm Resistors
2x2200uF, 100nF capacitor
In the schematic we can see the 37Ohm resistor that has a power of 2W, the other are 1/8W and are enough critical, you should see a voltage of 2,5V across the big resistor if all works correctly.
This is a class A amplifier and use a power n-mos as a switch, but is not very efficient, so the power mos need a heat sink because is get warm quickly as the big resistor.
A 0,1k resistor in parallel to the speaker will give a less inductor and a more resistive load.
I haven't used a clean audio source file, but I hope you like it, bye.
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Please be positive and constructive.