Recently I came across this Mosfet Class A Headphone amp schematic by Greg J. Szekeres, so I have this intention to read the diagram and draft out the layout of all the component first before I start building it. Let start with the component that I required.
List of Component:
Capacitor Line Up;
1) 2 x 1uf, 35V
2) 2 x 0.1uF, 35V
3) 2 x 470uF, 35V Electrolytic
Resistor Line Up;
1) 2 x 4.7k ohm 1/4w
2) 2 x 100k ohm 1/4w
3) 2 x 220k ohm 1/4w
4) 2 x 1k ohm 1/4w
5) 2 x 220 ohm 1/4w
6) 2 x 20 ohm 5w
Diode Line Up;
1) 4 x 1N914 Diode
Mosfet Chip Line Up;
1) 2 x IRF 513 Mosfet
Optional Item;
1) 10K - 100K Dual Pot
Alright so far the component isn't that much and also it look easy to obtained these stuff. (Thinking of getting all the high grade stuff since not many of them).
Ok let's look at Greg J. Szekeres original schematic;

After reading his schematic, am now going to put all the component into the picture which will look like this;

Ok now, there is one optional item wasn't in the picture which is the audio pot, if you want to add your audio pot, simple connect it before the "Right In" and "Left In" together with any point of the "GND" will do the job.
Last but not least, I will need a regulated 9v-15v power supply which will connect to the (+) and (-) as shown on the layout diagram.
For full detail of the sound quality and description of this Mosfet Class A Headphone amp please visit Greg J. Szekeres Article at http://www.headwize.com/projects/szeke1_prj.htm
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How does this Class A headphone amp compare to Cmoy amp ? Which do you think sounds better in your opinion ?
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