삼극관 제품의 차별

Discrimination of the base of the triode: According to the schematic diagram of the structure of the triode, we know that the base of the triode is the common pole of the two PN junctions in the triode. Therefore, when judging the base of the triode, as long as the common pole of the two PN junctions is found, That is the base of the triode. The specific method is to adjust the multi-meter to the R1k block of the electric block, first place the red test lead on one foot of the triode, and use the black test lead to touch the other two feet of the triode. If it is fully connected twice, the red test lead The foot placed is the base of the triode. If it is not found once, change the red test lead to the other foot of the triode and test it twice; if it is not found, change the red test lead again and test it twice. If you haven't found it yet, use the black test lead to place it on one foot of the triode, and use the red test lead to test it twice to see if it is fully connected. If it fails once, then replace it. In this way up to 12 times, the base can always be found.

트랜지스터 유형 구별: 3극관에는 PNP 유형과 NPN 유형의 두 가지 유형만 있습니다. 판단할 때 염기가 P{0}}유형인지 N{1}}유형인지만 알면 됩니다. 멀티{2}}미터 R1k 블록을 사용할 때 검은색 테스트 리드는 전원 공급 장치의 양극을 나타냅니다. 검은색 테스트 리드가 베이스에 연결되면 켜지며 트랜지스터의 베이스가 P-형이고 트랜지스터가 NPN{5}}형임을 나타냅니다. 빨간색 테스트 리드가 베이스에 연결되면 3극관의 베이스는 N-형이고 3극관은 PNP-형임을 의미합니다.