- #1 [drchan], 14-01-21 19:52
- #2 [user_aaron], 14-01-21 22:01Well 好耐無見 Dr.Chan 出現了.
期待報告. - #3 [drchan], 14-01-22 12:21I have one secondhand Jadis Orchestra Reference come with KT90 factory setting,
The last owner replaced with 6550 because one out of four KT90 is not function properly
I find the specificatio of KT150 is very close to factory KT90 settings than other KT88/6550
Tubes, so I decided to replace with the Tung-Sol KT150 and see what happen,
I will get the new tubes in next few days and desperately to hear any changes!
As soon as the KT150 function properly, I will try to increase the output power of
This Jadis from 40 watts up to ?? Watts, since the maximum output of one pair KT150
Factory claims 300 watts!
Dr Richard Chan -
- #4 [timtube], 14-01-22 15:40Is this a better choice?
- #5 [drchan], 14-01-22 15:57未試過 有機會一試 但輸出比較少
我比較喜歡大輸出管
低音有多D力水
Dr Chan - #6 [timtube], 14-01-23 10:09EL156 has a max plate dissipation of 50W which makes it as least as powerful as KT90, and probably more refined.
- #7 [drchan], 14-01-23 11:00I agree that I am not quite satisfy with the performance of KT90 in my existing Jadis and that why I try to upgrade to new KT150.
You may find a lot of test and comment about the new Tung-Sol KT150 on internet.
Dr Chan - #8 [tom55], 14-01-23 11:26KT150可否用落Mcintosh新版MC275 ?
- #9 [shanshanchanbb], 14-01-23 17:31Hi ar Chan c hing, where did u purchase the KT150s and how much may I ask? thx
- #10 [drchan], 14-01-23 21:46KT150 can be used in any MC275 because it can tolerance higher working voltage and power compare with KT88 or 6550
But you have to adjust the bias
I bought matched quad set from oversea at USD 333 per set
Dr Chan
最後修改時間: 2014-01-23 21:48:24 - #11 [shanshanchanbb], 14-01-24 17:39Thx for your info c hing. Awaiting your comments on the tubes. ^^
- #12 [jj3380], 14-01-24 19:02Dr.chan師兄,唔知ARC Ref 150由kt-120轉用kt-150可行?會唔會燒牛?
- #13 [drchan], 14-01-25 16:09KT120 與KT150 特性相近應該無問題 只需微調偏壓
Tung-Sol 廠確認KT150 是KT120 的改良版
請你留意我已上載的特性比較表
Dr Chan
最後修改時間: 2014-01-25 16:11:42 - #14 [tungsram13], 14-01-25 17:39I bought one quad set in last Saturday sounds much better than KT88 and much powerful!
- #15 [TW], 14-01-25 18:49#14 which brand of KT88, pls?
- #16 [drchan], 14-01-25 19:33#14 Please tell us what model of tube amplifier & tubes you are using
Please also upload some photos for us to share,
I think the shape of KT150 tubes are sexy.
Dr Chan - #17 [jj3380], 14-01-25 21:31多謝Dr.Chan師兄解答,不過剛買了8支kt120作後備用,最快要等多年先考慮換kt150,或者到可確定ARC能否使用kt150來取代120。
- #18 [drchan], 14-01-29 20:45昨天終於收到4隻KT150
個外表巳靚過其他膽,
正一系輸人唔輸?
可識今天要出門放假外遊幾天
真的想立即插入Jadis試試
Dr Chan - #19 [patkwok], 14-01-29 23:16drchan兄,
小弟用緊部el34推挽,是否都可以用kt120 or kt150呢? - #20 [drchan], 14-02-01 16:14我相信現在用僅EL34/6550/KT88/KT90/KT120 都可以升級改用KT150
只需要檢查和微調以下各點:
1. 買新KT150 4隻新膽要確保特性相同(特別別是推挽放大線路)
2. 由於KT150 的燈絲電流及滿載電流都比其他膽較大,需在換膽後檢查火牛
有無過熱,過熱很快燒牛,
3. KT150 比較其他膽需要多些散熱及安裝空間,即是肥D及高D但腳座一様,
4. 微調靜態偏壓及hum balance, 每部機要求的工作電壓及靜態電流都不同
,影響工作點在甲類或甲乙類放大。
5. 但無論如何,換膽後只會更好聲及更耐用,很難番轉頭
6. 根據Tung-Sol 廠提供數據KT150 亦可用於純甲類單端輸出線路 約25Watts輸出功率 比845 平靚正好多,有空我將我部科寶845 換KT150 試下好唔好聲。
我預計而家賣僅KT88膽 貴到無論好快要收檔!
由於我而家仲系日本滑雪,我部Jadis 用僅KT88準備換KT150 要過幾日先有空玩!
Dr Chan
最後修改時間: 2014-02-01 16:24:29 - 下一頁 (1 of 8)
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Please note the beautiful Tung-Sol KT150 shape
I have ordered one Quad set and going to insert in a Jadis Integrated Amp to replace KT90
in next week and see what happen!!!
Very Very interesting!!!
Dr. Richard Chan
最後修改時間: 2014-01-21 19:56:41