I would like some pcb layouts for a small class a amp ...3-5 watts ...and if it`s posibile a eagle or target file ... so i can print it and start building ...
Here you will find something looking good, but no layout nor PCB. It is so simple you can do it fast.
3 - 5 Watt Class-A Audio Amplifier - RED - Page80
3 - 5 Watt Class-A Audio Amplifier - RED - Page80
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DOZ, Death of ZEN is a Class A amplifier at ESP Projects
Death of Zen - A new Class-A power amp
An externally hosted image should be here but it was not working when we last tested it.
The test circuit used by Rod Elliott is a very basic Class A with resistor loaded output ( 8 Ohm ).
This schematic shows +24 Volt supply.
But it will actually work without problems at lower voltage, too.
And you could very well use other transistors with good results.
Just released yesterday, an idea by Mike Renardson (end of page) :
HEADPHONE AMPLIFIER DESIGN, PART 1.
HEADPHONE AMPLIFIER DESIGN, PART 1.
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yeah, but as neither of the circuits at the end of the page are proven it might not be good for a first go
the author states:
"Here is an untried version with component values"
"This circuit could also possibly work as a low power class-A amplifier"
Anyhow another simple option might be something that doesn't even require a pcb - just use point-to-point wiring.
for example:
http://diyaudioprojects.com/Solid/ZCA/ZCA.htm
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