Triode soldering skills on the hash board
-
The triode is a current control element, which is divided NPN type triode and PNP type triode, with a switching function. When measured with a multimeter, the normal resistance of the triode should be 150 to 750 ohms. So how to distinguish the NPN type and PNP type triode? What precautions should be taken when replacing the triode?
Click To Watch {{ is_submit ? 'View Test' : 'Click To Test' }}
{{ item.name }}
Answer: {{ item.answer_txt }}
Analysis: {{ item.analysis }}
China Mainland
Hong Kong
Business Hours: (GMT+8) 08:30-20:00 Mon to Sat
Company Phone: +86-023-72227777
Spring Festival Holiday Notice
CLOSE
Dear Friends,
Hello everyone, as China is about to usher in the Spring Festival, our company is scheduled to start the Spring Festival holiday from February 12 to February 23, 2026 (GMT+8). Our pre-sales customer service and course tutors will reply to your message as soon as possible. Please understand and forgive us if we are unable to reply promptly. Thank you for your support and trust in 2025. In 2026 and the future, the ZMRC team will continue to offer you more professional courses and technical support.
Best wishes,
ZEUS MINING CO., LTD.
CLOSE