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| [#14048] Leak Club ~ 易悲門 台灣大地震都上倒易悲門 今晚反而上唔倒 #4%7^5#@* _________________________________________________ Relax Gingers! Good for your wallet :-) |
ace_hayashi 正式會員192.xxx.xxx.40 |
2007-02-07 23:06 | |
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| [#14049] Leak Club ~ Lorenz EL84 Lorenz EL84 Identified by: - D-Getter, declined mounted - plate with 2 large opposite slots Comment: Very rare and nice tube. -------------------------------------------------------------------------- Lorenz EL84 Identified by: -D-getter (near ring) - smooth plate, with one slot Comment: Very rare and nice tube. :o)  |
thlee 正式會員 143.xxx.xxx.210 |
2007-02-07 23:36 |
| [#14050] Leak Club ~ 殼 一殼眼  |
Gingers 正式會員 221.xxx.xxx.6 |
2007-02-08 19:59 |
| [#14051] Leak Club ~ 殼 Same pair?  |
ace_hayashi 正式會員 192.xxx.xxx.44 |
2007-02-08 20:31 |
| [#14052] Leak Club ~ 殼 THESE ARE THE 3RD SET OF TL12 IVE OWNED & ARE THE BEST SOUNDING. Chassis and transformers are all original. Parts have been carefully selected to give the best sound. Chassis have been COPPERPLATED and polished to give a unique look. Purists who object to changes can restore back to original appearance if they wish. ITS MUCH EASIER TO DO THAN SOME OF THE RUSTED EXAMPLE RECENTLY SOLD ON EBAY! Please note that original paper can have been replaced by SOLEN caps, as originals were faulty. AMPS WEIGH Approx 30kg.when packed. postage to ASIA $250us. by Air, Europe $200. by sea mail. AMPLIFIERS PERFORM PERFECTLY!!!!! sold without tubes. --------------------------------------- THESE ARE THE 3RD SET OF TL12 IVE OWNED & ARE THE BEST SOUNDING. The seller always UPGRADEs the chassis :-) |
Gingers 正式會員 221.xxx.xxx.6 |
2007-02-08 21:39 |
| [#14053] Leak Club ~ 殼 So.. Gingers has now found a good reason to buy a 3rd pair of LEAK TL/12.1's, though he may not "upgrade" any of the chassis. :) |
rcwy 正式會員 221.xxx.xxx.225 |
2007-02-08 22:58 |
| [#14054] Leak Club ~ 殼 介紹電解電容(一) 在音響器材的擴大機領域裡，大型的鋁電解電容器可能幾乎佔了機內大部份的體積。因為鋁電解電容器每一CV積(C:靜電容量，V:電壓)比起其它種類的電容器，其所占的體積最小，且又價格便宜(以單位靜電容量來說)，所以是一種經常被使用在需要大容量電容器如電源濾波、儲能等電路的電容器。 電解電容器是以電解的方法形成的氧化皮膜作為介質而作成的電容器。而鋁電解電容器是以高純度鋁當陽極，和以乙二醇、丙三醇、硼和氨水等等所組成的糊狀物當電解液，在電解液中電解使鋁表面產生一層極薄的氧化鋁膜為介質所作成的電容器。電解電容器因為電介質薄膜可以作得很薄，因此可以作出體積小容量大的電容器，為大容量電容器的主要的零件。但是電解電容器卻有不少缺哈，例如頻井特性和溫度特性差，而且漏電流和介質損失大等等。另外，當極性被反接時或兩端所加得電壓超出規格時，其安全性將被破壞，電解液將被氣化而爆出(即俗稱所謂的擊穿) 有很多的外在環境因素都會引起電解電容器性能上的劣化，如溫度、濕度、氣壓和振動等，電氣方面的影響則包括了電壓、漣波、電流和充放電等。在環境因素中以溫度對電容器壽命的影響最大，且會使靜電容量變小，損失增大。另外，鋁電解電容器因為比其它電容器損失(內部電阻)較大，由漣波電流所引發的熱對壽命也會造成很大的影響。另外，某些純A類擴大機所需的高偏流會引起高熱，高熱容易導致所有相關零件使用壽命嚴重的縮短，這其中又以電源重鎮的電解電容器為甚。高熱會使得電解電容器的性能迅速劣化，壽命及靜電容量都縮短到只有原來的幾分之一，如此一來濾波電容等於失去作用，很容易機器便會出現故障。 介紹電解電容(二) 接著我們介紹幾款在音響圈中的電解電容精品:首先登場的是大名鼎鼎的SPRAGUE電容，在標榜HI-END的擴大機裡頭，出現率最灣的一種，舉凡Krell、Mark Levinson、Cello等著名廠機裡，電源濾波一定是由它來坐鎮，此外還有為數多得數不清的音響廠家亦採用SPRAGUE電容。SPRAGUE電容是美國製的高級電解電容，藍色膠皮包裝，品其優異，性能穩定，而且壽命很長。在以前高級電解電容進口數量尚少的時候，SPRAGUE電容是自裝迷們在灣裡大發進口的廢五金堆中搜尋的寶貝，專賣拆船舊貨的二手零件商，SPRAGUE電容也是極為搶手的熱門貨。即使從廢五金堆中所掝到SPRAGUE電容都已經是有相當年紀的東西，但是用起來一樣令人滿意它的表現，這裡也說明了SPRAGUE電容的使用壽命是如何的長了。然而SPRAGUE這個名字今後可能再也不容易看到了，因為它已經被日本的Nippon Chemi Con電容給購併，但是SPRAGUE所有的生產線可能還維持原來的材料與作業方式，只是生產規模可能有異，所以電容器的外型以外外皮包裝的顏色也仍和原來的SPRAGUE電容一樣，只是商標已經改Nippon Chemi Con的小盾牌而非SPRAGUE。細心的讀者可以觀察新近出廠的上述名機，濾波電容看起來似乎仍與以前沒有什麼兩樣，但是實際上商標已不是SPRAGUE字樣而是一個小盾牌了。 介紹電解電容(三) 再來是德國著名的ROE電解電容，ROE電解電容在較早期與SPRAGUE電容二者可說是歐美主力音響品牌中唯二的選擇，特別是歐洲的音響器材ROE電容用得很多，各種臥式立式電容在電路板上經常可見。說到SPRAGUE電容與ROE電容在HI-END 音響器材中的代表性，可以Krell的擴大機來做為典範，Krell的必v擴大機主濾波電容是sprague電容，輸入級電墾放大與驅動級的電容器，便採用了ROE。Krell的前級以及數位器材也是依樣畫葫蘆，特別的是Krell的前級以及數位器材裡所用的ROE電容都一定採用一種豬肝色塑膠殼包裝，EK材質的品種。ROE電容在以前大部份是金黃色的外皮包裝，裝在機噞內部線路板上金黃一片煞是好看，令人不由得聯想起泛著黃金般光澤的音質與音色，澳洲有一ROE電容作為主濾波電容，在造型設計時並特別將電容器外露出來，以增加器材本身高級的質感。不過近來的ROE 電容，小數值的電容外包裝已經改為黑色了，就美觀上而言真是令人喪氣。 歐洲電容的品其真是一級棒的，請將注意力移到Philips電容。Philips電容在這兩年新出廠的高級器材中的曝光率已經是愈來愈高了，舉凡中價位的器材如ONIX，高價器材如Goldmund，真空管機的極品天神JADIS以及其它為數甚多的品牌，可以漸漸看出Philips電容的實力所在，國內老字號的高級零件供應商，佑昇電子公司的負責人李先生，就是一直大力鼓吹Philips電容好處的人。Philips電容的外包裝也是藍色，不過顏色比之SPRAGUE電容稍，它有很多系列，其中一個較高級的型號其罐身有釵h六角型的凹痕以增強電容器的機械強度，當然以成本來說這種也會比較貴。 ----------------------------------------- http://audioart.audionet.com.tw/freshman/5.htm |
Gingers 正式會員 221.xxx.xxx.6 |
2007-02-08 23:29 |
| [#14055] Leak Club ~ 濾波電容 濾波電容 來自瑞典的RIFA電解電容，採用的路響廠家寥寥可數，因為RIFA電容實在太貴了，這麼貴的售價當然是有原的，不用說也知道，一定是性能以及品質都實在是好得沒話說，要不然賣那麼貴有人買才怪。但偏偏音響圈中就有那種為誕求得最優秀、最高級的品質而不惜重金的狂熱份子，當然它所製成的成品的價也就不會低到那裡了。例如Audio Nord有一款Dali Gravity後級(國內已引進)日本的定價是一台五百萬日幣，另外丹麥的音響精品Gryphon內部就用了不少的RIFA電容，尤其是DM-100以及REF-1等旗艦級的後級擴大機中的主濾波電容，那幾個白色、大得有如鳳梨罐頭的電容器真是令人嘆為觀止。RIFA電容特別與它牌電容不一樣的地方有二::一是RIFA電容的外包裝是一個白色的塑膠殼，不像其它的電解電容只是一個白色的塑膠皮，第臣個也是令人好奇的地方，就是RIFA電容拿在手上搖起來有明顯的液體流動聲音，這也是坊間會膩稱RIFA的大容電解電容為鳳梨罐頭的原因了。另外RIFA電容的規格到底有什麼令人值得投資那麼大的地方呢?原來RIFA 電容能處理提供的電流非常大，充放電的速度極快，這表示它能應付強大的動態以及低頻所需的大量電流，而且RIFA電容內部的等效電感和等效電阻都非常的低，這就應了Gryphon老闆所說的:「RIFA電容的好處不止在於它的低頻，而在於它的高頻。」因為這一點正是電解電容器最大的致命傷，大的等效電愈和等效電阻所形成的高頻阻抗，使得音響器材的高頻受到了限制。RIFA電容還有一個最重要的特點:壽命特長，長到如果你四十歲存夠了錢買得起一部用RIFA電容做濾波的音響，連續不停的開機使用，它大概可以陪你到八十歲或一百歲，只是，你活得到那時候嗎? http://audioart.audionet.com.tw/freshman/19.htm |
Gingers 正式會員 221.xxx.xxx.6 |
2007-02-08 23:30 |
| [#14056] Leak Club ~ 濾波電容 John Any photos which were taken by your new DC to share? John  |
Gingers 正式會員 218.xxx.xxx.4 |
2007-02-09 08:53 |
| [#14057] Leak Club ~ 濾波電容 濾波電容 不論是甚或高檔牌子, RIFA, SPRAGUE, BHC,.... 仍然是電解質的. 電解質電容的特性就是不及薄膜電容, 更不及油浸電容的表現. |
rcwy 正式會員 221.xxx.xxx.225 |
2007-02-09 09:20 |
| [#14058] Leak Club ~ 濾波電容 It's probably one of the most misunderstood things about vacuum tubes: The name on the tube is the company that made it right? Well actually the answer is No - and that's why it can be so confusing. The tube making giants of the 1940's, 50's and 60's were Amperex / Mullard / Philips / RCA / Sylvania and GE ( General Electric ) to name most but certainly not all. While it's true that they made tubes with their company name on the glass - the bulk of their production was devoted to making tubes under contract for other companies. Remember the Zenith TV your family had in the living room back in the 70's? All the tubes inside were labelled Zenith and Only Replace with Genuine Zenith Tubes. Brilliant marketing but somewhat deceiving since Zenith didn't make tubes. They bought them in bulk from GE and Sylvania and the supply contracts required that the tubes were labelled Zenith. The public didn't know that - it made sense to replace a Zenith tube with a Zenith tube. Zenith knew that other brands could be used instead but they were protecting their repeat business. This is just one example - multiply it by the 100's of other companies making TV's, organs, radio receivers, amplifiers, medical / test equipment and you can see how confusing this became. All those different names on the glass but still only a handful of companies making tubes. So how do you know who made a tube? Learn to read the production codes - not the brand names. Each tube will have markings which show two things - the company that made it and when it was made. Once you learn these codes it makes tube identification easy and allows you to find good deals. There are a lot of good resources on the web that will teach you about production / date codes. It's a small picture but I have a larger version in my auctions. Four 12AX7 tubes made by Amperex: some labelled for Rogers, another for Electrohome and the 1st one as an Amperex Bugle Boy. Guess what? They all sound the same. Why? Because they were made on the same assembly line, using the same materials and method of construction and with the same testing afterwards. If Amperex made the tube it's going to sound like an Amperex tube. Just like Johnnie Walker scotch tastes like Johnnie Walker scotch regardless if it was packaged in the familiar bottles or a glass mason jar. The only difference is the tube on the far left will sell for double the price - because it has the Bugle Boy logo. We've been brought up to think that the label on the outside is the most important factor and that simply isn't the case. The label means nothing - who made the tube is what your ears hear. I've sold a lot of these hidden gems: the Mullard / Amperex / Philips 12AX7 that have someone else's name on the glass but still give you all the tone you expect from these companies. Check out seller reegs67 for additional info and supportive feedback. Thanks for your time - your comments are always welcome. http://reviews.ebay.com/Amperex-Bugle-Boy-12AX7-ECC83-preamp-tubes_W0QQugidZ10000000002395429  |
Gingers 正式會員 221.xxx.xxx.244 |
2007-02-10 10:45 |
| [#14059] Leak Club ~ JBL 4312M JBL 4312M cute look. Seize like LS3/5A :-) Photo borrowed from 7308 :-)  |
Gingers 正式會員 221.xxx.xxx.244 |
2007-02-10 10:59 |
| [#14060] Leak Club ~ JBL 4312M Itchy to get one pair JBL 4312M to meet Tannoy Autophy mini :-) |
Gingers 正式會員 221.xxx.xxx.244 |
2007-02-10 11:02 |
| [#14061] Leak Club ~ JBL 4312M jbl 4312m... 二手市場啦！ |
aliu 正式會員 203.xxx.xxx.55 |
2007-02-10 11:04 |
| [#14062] Leak Club ~ JBL 4312M The JBL 4312M looks very cute! Ginger, you should get it la..so that we can AB compare.. |
maxbliss888 正式會員 165.xxx.xxx.110 |
2007-02-10 22:45 |
| [#14063] Leak Club ~ JBL 4312M http://www.harman-japan.co.jp/product/jblhome/4312m.html  |
Gingers 正式會員 221.xxx.xxx.142 |
2007-02-10 22:58 |
| [#14064] Leak Club ~ JBL 4312M Hello John, Richard Yim and everyone I know or I don't know! I will be back to HK on Monday 12th Feb, hope to meet many of you. Regards Hon |
hifienthusiast 正式會員 80.xxx.xxx.11 |
2007-02-10 23:00 |
| [#14065] Leak Club ~ JBL 4312M Hon Great. I will be off from next Wednesday :-) John |
Gingers 正式會員 221.xxx.xxx.142 |
2007-02-10 23:03 |
| [#14066] Leak Club ~ JBL 4312M Hon, Welcome home (HK)! Remember you last listened to the 2nd last prototypic 27M, don't you? Now you can hear the last prototype 27M, same colour (blue) but larger in size. Tell me if the sound will loom large as its size, or keep decent? :)  |
rcwy 正式會員 221.xxx.xxx.225 |
2007-02-10 23:18 |
| [#14067] Leak Club ~ Leak TL/50+ KT88 fever is up & up now :-)  |
Gingers 正式會員 221.xxx.xxx.220 |
2007-02-11 10:47 |
