英文好的同志帮忙看下（有更新）

sg771118

Yes - it's design application & rating is w/o DC plate voltage on the  
pri. If you're intent on trying to use it as an OPT you ought to first  
mock it up & 'scope it for notching at it's intended DC current & pwr.

pli

让我试试。

   Yes。它的设计应用和功率指标是基于在初级上没有直流的plate电压。如果你想
把它用作输出变压器，你首先必须做它的仿真计算，看看如何除去它在应用中的直
流电流和功率。

说明：
     不知plate是否是译成屏极，因为按标准屏极是译作Screen。但看到有时是混
用的。不是很清楚。

pli

>> w/o DC plate voltage

我想他是想说"没有DC电流"

pli

plate 是屏极。

还是不清楚notching什么。notching 肯定不是观察的意思。有上下句就容易一些了。

sg771118

谢谢了

紫岚

英文厉害啊

dd2008

sg771118

tf that >will match most any Z (600ohm thru 8 ohm, pri & sec same versatility), NOS >in orig box, I used it once to match my Kronhite DC 50 to voice coil (120ohm >to 8 ohm) & it worked surpurbly. Super clean, super linear

sg771118

UTC (Linear Standard) LS34 matching transformer. This is a matching tf that >will match most any Z (600ohm thru 8 ohm, pri & sec same versatility), NOS >in orig box, I used it once to match my Kronhite DC 50 to voice coil (120ohm >to 8 ohm) & it worked surpurbly. Super clean, super linear..... $90. Note: >If you can come pick it up, will toss in the Kronhite amp for additional >$20. (hi) > >Pr of Nady wireless mics (these have 150k miles on em) with rxs, but they >were still working when retired. ....$30. for pair. > >Gerstch service monitor mod FM-9 with lo freq adaptor chassis (digital >display) does 30 meg thru UHF. Solid state unit of coarse. Problem? it >doesnt work! Oh, the master osc works & is accurate. I have the service >manual so its fixable. This is one of those times I got "stuck"! So I'm >cutting my losses....$100. OBO, or trade. > >B&W Signal Slicer (kit) never wired. Parts are mounted on chassis but as >new. Comes in its cabinet (cab has not been treated well)............$20.?? > >Pair of JBL D-130 speaker frames. Needs reconing but frames are clean & >voice coils & forms are all there........$100. pr > >All the above + shipping, etc. I'm looking for certain parts for a Colllins >20V-2 transmitter (my future am tx). Terms: besides trades, cash, mo & I can >use Patty's Visa machine. I no longer will hold an item past 5 days

sg771118

125ohm,125ohm:125ohm,125ohm:voice coil) and was wanting to use them
for a 2A3 push pull amp. Basically what I would be doing is puting all
of the 125 ohm windings in series to get a 2000 ohm primary with center
tap. Then I would wire the voice coil taps for 5 ohms and use an 8 ohm
speaker load which would give me an effective primary impedance of 3000
ohms, just right for a pair of 2A3's in fixed bias.

sg771118

Hello Everybody,
I have a pair of UTC LS-33 transformers
(125ohm,125ohm:125ohm,125ohm:voice coil) and was wanting to use them
for a 2A3 push pull amp. Basically what I would be doing is puting all
of the 125 ohm windings in series to get a 2000 ohm primary with center
tap. Then I would wire the voice coil taps for 5 ohms and use an 8 ohm
speaker load which would give me an effective primary impedance of 3000
ohms, just right for a pair of 2A3's in fixed bias.
Basically, my question is: How should I arrange the four 125 ohm
windings to get the best fidelity, least leakage inductance, least
capacitance, etc.? The terminal arrangements with winding resistances
are as follows:

Winding # Terminals: DC Resistance:
1 1,2,4 21.6 ohms
2 3,5,6 27.6 ohms
3 7,8,10 22.9 ohms
4 9,11,12 26.0 ohms

I don't think that this transformer is bifilar wound, like the old
Mcintosh unity coupled designs, but I may be wrong. But it seems to me
windings # 1 and 3 are very similar, closely coupled and likewise for
windings # 2 and 4.
Originally, the LS-33 was a line to line (500ohm to 500ohm) matching
transformer with additional windings for voice coil outputs.
Does anybody know how the Ls-33's are wound and could offer me some
guidance?
Thanks in advance... Daniel

pli

notching 是指波型

I disagree. Notching here is a verb+ing. People typically say "notch it off",  which means to cut someting off. "Notch filter" is a filter to remove a  certain portion of a frequency band. So I am sure notching is not for waveform, but to be frank I could not figure out what it is about. By the way I am new to these tube stuff and I found that translatiing these English into Chinese is not a walk in the park, although I thought I am very good in both.

Waveform is for the 波型.

But anyway it is not a big deal since the previous paragraph was not trying to make some critical technical point but rather raise some cautions about using that specific transformer as OPT.

pli

原帖由 danioy 于 2008-5-25 15:36 发表
SG 你干脆直说吧，你准备做什么线路，手头有什么UTC 的推动牛，你想解决什么问题。

如果你觉得不方便，可以短消息我，或者加我的QQ, 242708。 我们一起来解决好了。

其他朋友，也可以随便加。注明胆友就好。

不错。逐段翻译挺费事儿。还不一定翻译得准确。
我也就想在此坛学点东西。

pli

原帖由 danioy 于 2008-5-26 13:25 发表
OPT 特指输出变压器。
电源变压器的缩写是 XMFR.

Did I get it wrong? I did not think so. People may also call transformer tranny but that is beyond the point here


任何专业性的文章里面都有这些缩写。 所谓 Jargon。 记住： 英语的文字是表音的， 以记录发音为主。汉字是表意的。

I do not get that either. Word without meaning does not constitute a valid language. But again this is boyand the point here either.

还有一个建议给你： 不要再用英汉字典 ...

Yes. This is right and I have not used it forat least  last 15 years!

By the way  I do not want to start a fight here so can we just drop it?

sg771118

想买朋友的ls33 做805的推动牛，

但说法很多，国内的朋友的说法是只能过5ma，国外的论坛用来做2a3推挽的输出牛。台湾的用来做300b推805的推动牛。

搞不清楚濂