Uses TIP142 and TIP147 Darlington power transistors and a single TIP41. 1x TIP147 Darlington Power Transistor. 1x TIP41 Power Transistor. 1x TIP142 Darlington Power Transistor. Here we have an very compact 70mm x 40mm PCB for building a power transistor based Hi-Fi mono power amplifier by KMTech Design.
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