"管機" 俱樂部... 讓管子GLOW吧!!!

本文由 [] JEM.ZAX []2010-11-28 發表於 "效果器、Amp、DIY" 討論區


  1. S.Steven

    S.Steven Member

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    上班用3.5G網卡,等起來真要命...
     
  2. Dragon

    Dragon 版主

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    2002-10-24
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    變成 "6534" 嗎 ? XD ... 要換 EL34 的話, 除了調偏壓, 而且還要"小改機",
    要注意的是 Peavey 的 bias test points 量測可信度不高

    Phase Inverter (PI) 簡單來說是"相位轉換管",
    在 Class AB (push-pull) 線路中和後級管有著密切的工作夥伴關係
    當代有管機的朋友都會選擇使用 "Balanced or Matched" 的 PI 管嗎 ?
    [​IMG]

    ..."there are a few things you need to know about valves
    and poweramps before the function of a phase inverter becomes clear.

    The electrical signal delivered to your speakers by
    your poweramp has both a positive and a negative polarity.
    Applying power to the postive side of the speaker will push it forward,
    and applying power to the negative side will pull your speaker backwards.
    This allows you to vibrate the speaker to push and pull the air
    particles into waves of compression and rarefaction, creating sound.
    A waveform (generated by you playing your guitar) coming
    from your powersection will have both a positive side (to push
    the speaker) and a negative side (to pull the speaker).

    Most marshall/fender type amps have class a/b (push/pull)
    power amps. This means that one tube (or one pair of tubes)
    will amplify the positive side (or push) of the waveform. The
    other tube (or pair of tubes) will amplify the negative side (or
    pull) of the waveform.

    Ok, that explains how a class AB powersection works.
    A 12ax7 is a dual triode. This means that it is essentially two
    completely seperate tubes in the same glass housing. These
    are very useful tubes as they can amplify two seperate signals,
    or be used as two seperate amplification stages.
    In the case of the 12ax7 used as the phase splitter (or phase
    inverter), one of these two stages is used to deliver the
    positive phase of the waveform to one power tube (or one pair
    of powertubes), and in the other stage is used to deliver the
    negative phase of the waveform to the other power tubes (or
    the other pair of power tubes)."

    以前把前級管換來換去作音色實驗, 到最後人變懶了,
    乾脆都把前級管通通皆換成同個廠牌的, 不用再去煩惱
     
    Last edited: 2010-12-16
  3. moonfire

    moonfire Active Member

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    上次聽了EL34跟6L6的比較,6L6的低頻較多,EL34的高頻較多
    兩個都想要啊...哈哈...
     
  4. 達摩

    達摩 New Member

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    EL34出來的中頻也比較有"肌肉"感...
     
  5. 呆丸雷克斯

    呆丸雷克斯 Member

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    讚拉!!! 那是不是要開個版來登記阿~~ 等到湊齊了大概的數量(例如25台) 然後再決定PARTY的日子 〉YA~~ :D

    例如
    帳號名/管機名/參加人數
     
  6. miller947

    miller947 Member

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    恕刪....
    我沒有管機
    不過滿想嘗試做一個看看
    不知道前輩的電路圖是在哪找的??
    可以分享一下嗎??
     
  7. Dragon

    Dragon 版主

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  8. miller947

    miller947 Member

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  9. 小田

    小田 New Member

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    [​IMG]

    分享一下剛到手的VM Bandmaster! 這是幫朋友買的,到時候幫他帶回台灣。

    另外我想請問的是:
    這顆是在MF上買的,但我剛剛看了一下,頭上面只有兩根管子耶,但應該要有兩根前級
    管跟兩根後級管的。我跟朋友都是第一次買管機,所以想請問一下買管機通常都是不附
    管子的嗎?
     
  10. 達摩

    達摩 New Member

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    老兄, 你看到的是後級管, 另外二支前級管在那金屬管內.
     
  11. 小田

    小田 New Member

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    不好意思,真的是見笑了! 感謝達摩兄!
     
  12. Ray-Huang

    Ray-Huang Member

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    2005-04-04
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    請問Bandmaster VM

    想請教這整組帶回台灣究竟花了多少銀兩呢? 謝謝!


    中岳
     
  13. 呆丸雷克斯

    呆丸雷克斯 Member

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    哪個牌子和型號最優?

    請教版上的達人們,如果不管預算,哪一個品牌的管機最值得買呢?
     
  14. ☆哈利★

    ☆哈利★ Member

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    不管預算.....有人要推Dumble了~~~:cool:
     
  15. 小田

    小田 New Member

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    整組帶回台灣就是在MF上買的價錢,因為有朋友是United Airline的vip,所以這整
    組可以當作普通行李帶回去,等於從美國到台灣免運了! 我記得是九百多,免運,所
    以很划算! 這顆很high,那時候跟朋友在youtube上聽了五六個小時,才決定是她!
    中岳老師也喜歡這顆嗎?
     
  16. moonfire

    moonfire Active Member

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    2003-04-25
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    不管預算,就買你覺得聽起來最晶瑩剔透的clean tone amp,例如Victoria
    再買一個你自己刷起來最多汁的crunch drive amp,例如Dumble
    再買一個你自己彈起來最讚的rock tone amp,例如Soldano
    再買一個你自己趁起來最爽的metal amp,例如Diezel
    再買切換器切換四個amp,這樣應該沒得挑剔了~希望我也能這樣搞~
     
  17. Ray-Huang

    Ray-Huang Member

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    啊哈!!

    月火兄描述的完美狀態小弟勉強有個75%, 但是...但是...., 到底要搞哪種音樂才真能全都用得上呢?? 而且而且, 在什麼場合才開得出足夠的音量呢?? 唉......

    話說Bandmaster VM我主要是好奇她的數位效果是不是會讓整體的音色也變得電電的呢? 並且, 她的輸出以及Cab好像是mono的設定吧? 對於想要Stereo的畫面好像有些難度? 否則, 這樣的size其實真的挺理想的!!

    感謝小田兄!


    中岳
     
  18. Dead Heart

    Dead Heart Member

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    <object width="480" height="385"><param name="movie" value="http://www.youtube.com/v/bL8VaOg70F8?fs=1&amp;hl=zh_TW"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/bL8VaOg70F8?fs=1&amp;hl=zh_TW" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="385"></embed></object>

    這樣就可以全包了.....
     
  19. moonfire

    moonfire Active Member

    註冊日期:
    2003-04-25
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    中岳老師湊了75%的amp…還差25%說~~
    我的5150接了LB120 II的Power Attenuator,再進VHT的212,裡面是V30
    Lead CH在頂樓開4~5,不過只有在白天啦
    小Live上應該也很難開大...
    老師的話乾脆搞間隔音室吧~~

    另外我也想問,如果接了兩個以上的Power Attenuator,除了音色外會有什麼後果?

    Class A的音箱是音量愈大愈讚~如果開最大但return裡接個音踏拉小
    這樣不知道Class A的音壓出不出得來
     
  20. magicdage

    magicdage Member

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    2006-12-04
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    我是有幾顆~
    1,Headstrong,swart,Walter woods,Fender twin amp
    2,Brown Note(dumble clone)
    3,Mad professor MP101
    4,Bogner XTC Classic,Peavey 5150 FJA 3CH
     

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