It is long time since I did anything in analog circuits, so this weekend was spent in analog circuits.
I was working on creating sound from one micro controller board and wanted the sound to be audible through a loud speaker. This called for a small audio amplifier and I had LM386 (old but still useful) in the junk box, so I set out to create a small board for it.
The schematic:
The PCB design:
Printer toner transfer, etched and drilled board:
(few holes were not perfect, first time trying my new Dremel tool for PCB drilling)
Assembled board:
I was working on creating sound from one micro controller board and wanted the sound to be audible through a loud speaker. This called for a small audio amplifier and I had LM386 (old but still useful) in the junk box, so I set out to create a small board for it.
The schematic:
The PCB design:
Printer toner transfer, etched and drilled board:
(few holes were not perfect, first time trying my new Dremel tool for PCB drilling)
Assembled board:
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