Transistor en placa
Fuente: http://4.bp.blogspot.com/_-jEMWY3yIQk/SbxGyiz7OQI/AAAAAAAAAEs/67ih3tOd-cc/s400/transistores_epson_resize_208.jpg
Fuente: http://4.bp.blogspot.com/_-jEMWY3yIQk/SbxGyiz7OQI/AAAAAAAAAEs/67ih3tOd-cc/s400/transistores_epson_resize_208.jpg