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  • 진공관 선택

진공관 선택

Oct 29, 2018 | 0 comments posted by Vincent Zhang

진공관 선택

진공관은 가장 초기의 전기 신호 증폭기 구성 요소 중 하나입니다. 캐소드 전자 방출 부분, 제어 그리드, 가속 그리드 및 유리 용기(일반적으로 유리 튜브)에 동봉된 양극(스크린) 리드가 튜브 베이스에 용접됩니다. 전기장은 진공에서 제어 게이트에 전자 변조 신호를 주입하는 데 사용되며, 양극에서 신호 증폭 또는 피드백 발진 후 다른 매개변수 신호 데이터를 얻습니다. 초기에는 텔레비전과 라디오 증폭기와 같은 전자 제품에 사용되었습니다. 최근에는 반도체 재료로 만든 증폭기와 집적회로로 점차 대체되고 있다. 그러나 일부 하이파이 오디오 장비에서는 여전히 저잡음 및 높은 안정성을 가진 진공관이 오디오 파워 앰프 부품으로 사용됩니다.

6n116n5p6n8p엘84

전자관을 선택할 때는 먼저 특정 응용 회로의 특성과 요구 사항에 따라 적절한 관 유형을 결정해야 합니다. 둘째, 선택한 튜브의 매개변수가 애플리케이션 회로의 요구사항을 충족하는지 확인해야 하며, 특히 한계 매개변수가 충분한 여유를 가져야 합니다.

육안검사는 특별한 시험기를 사용하지 않고 다음과 같은 방법으로 할 수 있다.

  1. 튜브 상단의 색상을 관찰하십시오. 정상 튜브는 상단에 은색 또는 검은색입니다. 윗면이 유백색 또는 연한 검은색이 되면 튜브가 새거나 노화된 것입니다.
  2. 튜브에 이물질이 있는지 관찰하십시오. 부드럽게 흔들거나 손가락을 사용하여 튜브의 유리 껍질을 부드럽게 바운스합니다. 그런 다음 뒤집어서 파편, 백색 산화물, 부서진 운모 및 기타 파편이 있는지 확인하십시오. 전자관에 이물질이 있으면 관이 중심진동을 통과한다는 의미이며, 내부극간 단락 가능성이 크다.

blog tags: 53ZP 6N11 6N5P 6N8P EL84 IWISTAO tube amplifier Vacuum Tube

IWISTAO FU50 Small 300B 2x8W Vacuum Tube Amplifier Finished Board Kit Single-ended Class A DIY Free Tuning
Oct 17, 2018 | 0 comments

IWISTAO FU50 소형 300B 2x8W 진공관 증폭기 완제품 보드 키트 단일 종단 클래스 A DIY 무료 튜닝

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Bluetooth 5.0 Decoder + Mono FU50 Single-ended Tube Amplifier + HIFI 3 Inch Full Range Speaker
Dec 22, 2018 | 0 comments

블루투스 5.0 디코더 + 모노 FU50 싱글 엔드 튜브 앰프 + HIFI 3 인치 풀 레인지 스피커

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