Amplificador de 60w

 

Figure 1 - The 60W MosFet Amplifier Schematic

 

And here is the PCB and the component Layout (fig.2 ).

 

 

Just click to download the Layout in Tango PCB format

 

Figure 2 - The PCB and Component Layout

 

With a little modification, and after burning out 8 transistors, I've reached the best output signal.

In a short time, I'll put here the oscilloscope traces.

As an suggestion of Rod Elliot, I've changed the output transistors, as seen in fig.3. 

 

Figure 3 - Other output transistors

 

This give another output waveform, more aproximate to the real sinusoid.

The audio signal listened is softer in higher frequencies.

 

The power suplly is made by a simple toroidal transformer with an output at least of 3 Amp in 2x22V.

The filter caps must be at least 10.000uF for each line.