최초로 공개하는 외제 진공관 앰프 회로분석 (Foreign Vacuum Tube Amplifier Circuit Analysis)
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11:14
진공관앰프 조립 및 수리 입문 (Vacuum Tube Amplifier Assembly and Repair Entrance)
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34:37
300B 진공관 앰프 설계의 모든 노하우를 소개하였습니다 !
![](https://i.ytimg.com/vi/nK_uHgJT9wE/mqdefault.jpg)
33:56
반도체 명칭해설 및 기판수리 입문(Semiconductor Name Description and Board Repair Introduction)
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26:42
자동차 ECU 수리입문 1.
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26:55
High-power Chinese tube amplifier for $130 - Review/Assembly Instructions/test (6F2, 6P1)
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26:17
The last amplifier and 4 testing song
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24:48
Why audio circuit need bypass capacitors?
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18:57