120W Power Amplifier Circuit - Leach Amp
Here the 120W power amplifier claimed to be a very good sounding design.
The circuit is complex, so it will hard enough to build manually by yourself. The design of PCB layout is already presented, but it still hard enough to construct. I do not recommend that you create the circuit boards unless you have experience in doing it.
A source of materials for making your own printed circuits can be found here. I have been told that their "Press and Peel Blue" product (not the wet stuff they sell) can be used to successfully make boards with traces as narrow as 0.01 inch. The smallest traces on the amplifier layout are 0.03 inch wide. The PnP Blue product is basically a transfer medium that allows you to transfer the toner image from a laser printer directly onto bare copper clad board and then etch it with FeCl3 (ferric chloride). This is nasty stuff and it should not be disposed of in your drain.
The circuit is complex, so it will hard enough to build manually by yourself. The design of PCB layout is already presented, but it still hard enough to construct. I do not recommend that you create the circuit boards unless you have experience in doing it.
A source of materials for making your own printed circuits can be found here. I have been told that their "Press and Peel Blue" product (not the wet stuff they sell) can be used to successfully make boards with traces as narrow as 0.01 inch. The smallest traces on the amplifier layout are 0.03 inch wide. The PnP Blue product is basically a transfer medium that allows you to transfer the toner image from a laser printer directly onto bare copper clad board and then etch it with FeCl3 (ferric chloride). This is nasty stuff and it should not be disposed of in your drain.
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