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| [#5663] 單端胆機同好會 多謝Welborne，依家當個project 咁樣去run，當搞到聲靚樣靚自己樂在其中 最後修改時間: 2026-01-16 15:32:56 |
niceday009 正式會員112.xxx.xxx.52 |
2026-01-16 15:14 | |
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| [#5664] 單端胆機同好會 恭喜Niceday師兄追這個post好耐, 請問會有機會試聽嗎？ Andy |
waitobuy 正式會員 202.xxx.xxx.166 |
2026-01-16 17:07 |
| [#5665] 單端胆機同好會 Andy師兄可以稍後安排，設計及製作此機对我來說係享受人生的passion rather than pure business. 現在我只是在自己朋友圈內少量制作，每一部機做了出來發到香港好快被拎走，PM你再安排可以幾時 |
niceday009 正式會員 112.xxx.xxx.52 |
2026-01-16 18:26 |
| [#5666] 單端胆機同好會 https://www.facebook.com/share/r/1DojWqCMJt/ Awesome  |
niceday009 正式會員 112.xxx.xxx.52 |
2026-01-28 03:14 |
| [#5667] 單端胆機同好會 Awful Awesome vs Awful  |
niceday009 正式會員 112.xxx.xxx.52 |
2026-01-28 03:17 |
| [#5668] 單端胆機同好會 The Western Electric WE type 100 power amp employ WE308B power tube. With 1KV B+ 210mA idle current, and 3K ohm plate load, its output power is 35 watts. From the plate curve from the datasheet, it seems the 308Bs operating in a very linear region under the above condition. Johnny  最後修改時間: 2026-01-28 06:46:35 |
johnnykmtang 會員 70.xxx.xxx.22 |
2026-01-28 06:44 |
| [#5669] 單端胆機同好會 Western Electric claims the type 100 capable of producing 125W RMS. They employed MOSFET in the power stage working together with 308 Triode. WE claim their proprietary current source circuitry help to gain the output power TubeCAD explains that WE type 100 in fact is push pull operation but it uses a single-ended parafeed output transformer 最後修改時間: 2026-01-28 14:22:08 |
niceday009 正式會員 182.xxx.xxx.92 |
2026-01-28 14:13 |
| [#5670] 單端胆機同好會 The price is too good to be true. Just wondering if anyone got this pair of 300B mono's? Johnny  |
johnnykmtang 會員 70.xxx.xxx.22 |
2026-02-02 23:10 |
| [#5671] 單端胆機同好會 Hi Johnny, It would be much cheaper If we buy from China. My friend bought a pair 2 years ago. It is real bargain !! It would be much better If the output transformers could have been bigger  |
niceday009 正式會員 112.xxx.xxx.52 |
2026-02-03 09:32 |
| [#5672] 單端胆機同好會 昨晚重看了這一篇文章。  |
WilliamsonAudio 正式會員 203.xxx.xxx.196 |
2026-02-05 07:29 |
| [#5673] 單端胆機同好會 電容的方向。對聲音的影響。 What about capacitors? How did you go about selecting capacitors and resistors for your circuits? You have to listen to them. As far as capacitors go, we really got into identifying the outside foil, and listening to them either way, seeing which we preferred. They do sound different, depending on how you put them in the circuit. Capacitors used to be marked with a band on one side indicating the outside foil. Now, most caps don't have the band, so you don't know which is the outside foil. If the cap doesn't have a band you can use test equipment to find the outside foil. What is the preferable way to wire a coupling cap, from the plate of your driver tube to the grid of your output tube? If your outside foil is connected to the plate of the driver tube, using your example, that is what I call the slow way. That is the way I put them in, because I prefer transients are a little slower. Another advantage to this way is that it is fuller sounding. If you put them in the other way, it's a little faster sounding, but it's thinner sounding. And it works the same way for bypass capacitors and power supplies. I'm sure it does the same thing. Did you have any specific brand of capacitors? Back in the 1970s, there weren't as many choices of gourmet capacitors. Well, back in the mid-70s, we didn't really know the difference between capacitors. We used the Electrocubes, just the straight Mylars. I also used Vitamin Qs because they were available at electronics surplus stores. Vitamin Qs, however, give a soft and sometimes smeared sound. What kind of capacitors are you using in the signal path of your new designs? I use Rel-Cap polystyrenes. |
WilliamsonAudio 正式會員 203.xxx.xxx.193 |
2026-02-05 07:33 |
| [#5674] 單端胆機同好會 原文  |
WilliamsonAudio 正式會員 203.xxx.xxx.193 |
2026-02-05 07:34 |
| [#5675] 單端胆機同好會 ＞＞ we really got into identifying the outside foil, and listening to them either way, seeing which we preferred. They do sound different, depending on how you put them in the circuit. 確是可以聽到分別，而按电容表面印字作方向性焊接是聲音比較中性，一般我會按交連電容的英文字作方向性焊接，入→英文字→出 最後修改時間: 2026-02-07 00:41:48 |
niceday009 正式會員 112.xxx.xxx.52 |
2026-02-07 00:38 |
| [#5676] 單端胆機同好會 RELCAP RT 英文字作方向性焊接   最後修改時間: 2026-02-07 00:47:50 |
niceday009 正式會員 112.xxx.xxx.52 |
2026-02-07 00:46 |
| [#5677] 單端胆機同好會 靚仔！直熱管推動直熱管係德國人發現的好好方法！日本人左久間駿將這方法實踐並傳揚。 |
wcw12 正式會員 58.xxx.xxx.251 |
2026-02-07 13:50 |
| [#5678] 單端胆機同好會 wcw12師兄，確實直熱胆推直熱胆可保存更高綫性，一百多年前之擴音機都是全直熱胆 而直熱三極管係人類到現在唯止最高綫性之主動放大零件，不嫌麻煩，呢句說話最少係度講過五次 最後修改時間: 2026-02-08 16:15:16 |
niceday009 正式會員 182.xxx.xxx.188 |
2026-02-08 16:06 |
| [#5679] 單端胆機同好會 最線性放大元件。 直熱三極 排第一 旁熱三極 排第二 VFET 排第三  |
WilliamsonAudio 正式會員 154.xxx.xxx.15 |
2026-02-08 22:54 |
| [#5680] 單端胆機同好會 睇图就知，VFET已經係原子粒之中最線性，但比起Direct Heated Triode 仲差一大截 Triode will never disappear. 300B ,2A3, 211, 845, 212呢D胆已經有接近100年，現在仍生產，我諗去到個孫果代仲有生產  最後修改時間: 2026-02-08 23:49:28 |
niceday009 正式會員 112.xxx.xxx.52 |
2026-02-08 23:33 |
| [#5681] 單端胆機同好會 離題一下 見到附图即刻感受到有好多錢係幾咁美好，雖然对Magico同Kondo PSE不是所愛，但個TechDAS zero係世界唯一最好唱盤  |
niceday009 正式會員 182.xxx.xxx.100 |
2026-02-11 22:51 |
| [#5682] 單端胆機同好會 其實香港而家好多人都有幾億身家，攞一二千萬出嚟買心頭好唔係太難 難就難在下下只用錢搞掂晒啲嘢，買人哋嘅心血結晶，自己就錯過咗好多學習機會 我唔太相信呢啲所謂一步到位買超貴價器材嘅人會好似呢度嘅師兄識得咁多電子、電聲學問。 你冇呢一啲學問，我只能夠講，俾錢只係買個牌子、買個信任，被人牽着鼻子走 呢一類人未必太介意最後結果音效，佢哋介意牌子、信仰、同埋最重要嘅二手價 單純睇佈局，左邊嘅CD架吸音吸得勁，右邊嘅黑膠盆好容易被喇叭發出嘅聲音震盪到而引致共鳴強化音效，左邊吸得勁、右邊被強化，好大機會會左右失衡 |
Thanatos 正式會員 104.xxx.xxx.131 |
2026-02-12 00:30 |
