35W audio power amplifier circuit based LM391 – bottom pcb layout

35W audio power amplifier circuit based LM391 - bottom pcb layout

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35W audio power amplifier circuit based LM391 – bottom pcb layout. The transistors Q3-4 must be placed onto a heatsinks. If you use the Q3-4 with type of TIPxxxx, you can be placed directly onto the board. But if you use packaged transistors TO-3, then it should be connected with short cables to the respective positions of the board.

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1 Title: 35W audio power amplifier circuit based LM391 – bottom pcb layout
2 Upload by: Amplifier Circuit
3 Upload date: December 20, 2011
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