Видео ютуба по тегу Bd139

Тест транзисторов BD139 с разных китайских магазинов на Aliexpress
Тест транзисторов BD139 с разных китайских магазинов на Aliexpress
Ultimate All-in-One Component Tester with BD139 Transistor
Ultimate All-in-One Component Tester with BD139 Transistor
AM transmitter 1wat BD139
AM transmitter 1wat BD139
DIY AMPLIFIER WITH TRANSISTOR BD139 & IC LM358 @diytubes
DIY AMPLIFIER WITH TRANSISTOR BD139 & IC LM358 @diytubes
transmitter fm 2 transistor bd139 2.5 wat
transmitter fm 2 transistor bd139 2.5 wat
Smart 3.7V Battery Charging Made Easy with BD139 & TL431 Transistor
Smart 3.7V Battery Charging Made Easy with BD139 & TL431 Transistor
TOP 4 ELECTRONIC PROJECTS WITH BD139 TRANSISTOR
TOP 4 ELECTRONIC PROJECTS WITH BD139 TRANSISTOR
BD139 Transistor LED Flasher circuit.
BD139 Transistor LED Flasher circuit.
"DIY Voltage Controller: Brightness Adjustable Circuit with BD139 Transistor!"
Amplificador de audio con C5198 y BD139
Amplificador de audio con C5198 y BD139
Awesome Idea With BD139,BC547 Transistor
Awesome Idea With BD139,BC547 Transistor
#How to use #transistor (BD139)?? how to connect it?? how does it work??
#How to use #transistor (BD139)?? how to connect it?? how does it work??
DIY BI-DIRECTIN DC MOTOR CONTROLLER USING BD139 & BD140 TRANSISTOR
DIY BI-DIRECTIN DC MOTOR CONTROLLER USING BD139 & BD140 TRANSISTOR