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Ron / WB4HFN -------------- Original message -------------- From: Garey Barrell <[EMAIL PROTECTED]> > > Garey Barrell made an utterance to the drakelist gang > ---------------------------------------------------------------------- > Byron - > > OK. Relays take more coil current to "pull in" than they do to "hold > in". It takes a certain amount of current through the coil (pull) to > drag the armature from it's non-energized position to the energized > position. It takes much less current to (hold) it once there, so slight > leakage might NOT be sufficient to pull, but more than enough to hold. > > I don't know of any good way to touch up the panels. The original > "paint" is so thin, (I actually think it is more a dye (anodize?) than > paint, but don't know for sure,) and as a result any sort of paint ends > up looking worse than the mark! For a small mark or two, it might be > possible to just "fill" the mark to the level of the panel, but a string > of numbers would be a real challenge. Never could understand people > that do that sort of thing, especially on the front panel!! > > I just saw your order. There are scans of both the 34-NB and the 34-PNB > manuals, with quite a bit of information, plus I have added a photograph > of the board itself with active components and alignment info > annotated. There is also a Voltage table for the NB, which has not been > previously published. It's really a straightforward design, and most > units in the field benefit from an alignment. > > A lot of the components are common between the TR-3 and TR-4, but every > once in a while they threw in a curve like that cap to keep us off > balance! :-) > > Your CDs will go out tomorrow. Thank you! > > 73, Garey - K4OAH > Glen Allen, VA > > Drake 2-B, 4-B, C-Line & TR-4/C Service Supplement CDs > > > > > Byron Tatum wrote: > > > > "Byron Tatum" made an utterance to the drakelist gang > > ---------------------------------------------------------------------- > > Hey Garey- > > Thank you for the comments and help. I start nights at work and > > will have several to complete, then I will get back into the TR-4. I > > will measure voltage as you suggest, looking for a slight voltage > > drop. Then I will check out relay itself. > > I am beginning to think that it is the magnetizing of pole piece > > and relay wear that is the problem. If it was a leakage to ground on > > the 6EV7 pin #1 lead you might think the set would go into TX on its > > own (relay energize) every now and then, of which I have never saw it do. > > One other thing- I bought a nice TR-4 from a fellow, based on > > several pictures, but the photo angles, due to glare, covered up (of > > all things) a ham's DL # engraved on the front panel in tiny lettering > > , immediately to the right of "TR-4" on front panel. Do you know of a > > touch up paint that matches the darker grey of that front panel area? > > I got the set for a decent price, it was nice and had the built in > > NB, but had a problem (as advertised). I found T-9 to be burned out in > > center area of coil form. I had a spare T-9 from a parts unit TR-3. > > Thank goodness I opened up the TR-3 T-9 transformer before I installed > > it -- it had a 56 pF cap in it that was not in the TR-4 T-9. Otherwise > > the coils looked the same. Anyway, I clipped out the capacitor and all > > went OK after the repair. That is not a fun repair for sure!! > > CUL, Byron. > > ----- Original Message ----- From: "Garey Barrell" > > To: > > Sent: Tuesday, April 29, 2008 1:46 PM > > Subject: Re: [drakelist] TR-4 TX Hang-Up > > > > > >> Byron - > >> > >> Well things were going well until you pulled the tube out of the > >> socket! :-) > >> > >> There are a limited number of possibilities in that case. The relay > >> coil leads go through the feedthrough bypass caps _under_ the power > >> connector. Of course the relay lead to the 6EV7 is the one UNDER the > >> Jones connector, the last one in the "arc" of feedthroughs there. > >> (C92) There are no more components between this feedthrough and the > >> 6EV7 tube socket. The other relay coil lead goes directly the +250V bus > >> via the next feedthrough cap along the arc, (C91). So the voltage > >> measured at the tube socket pin with the tube out should be exactly the > >> same as the +250V bus. Any drop would indicate leakage. See attached > >> photo from my CD (at reduced resolution). > >> > >> So..... Leaky C92, leaky tube socket, pinched wire. One possibility I > >> have seen a few times is the "down" stop on the relay gets hammered down > >> over the years, allowing the armature to actually touch the pole piece > >> of the coil. The pole piece is slightly magnetized, and if the armature > >> physically is in contact with it, it will "stick". An easy check is to > >> slip a piece of paper in to prevent metal to metal contact between the > >> two. The "down" stop can be bent back up to prevent this contact. > >> > >> Let us know what you find!! > >> > >> 73, Garey - K4OAH > >> Glen Allen, VA > >> > >> Drake 2-B, 4-B, C-Line & TR-4/C Service Supplement CDs > >> > >> > >> > >> > >> Byron Tatum wrote: > >>> Hello- > >>> I have an unusual problem perhaps someone could shed some light on: > >>> I have a TR-4 in 29K serial range that functions normally > >>> except it will not go back into receive, until after approx 30 second > >>> delay, after the mic button is released or the function switch turned > >>> back to "SSB". This condition worsens (longer delay) the more you > >>> frequently you transmit. The sidetone disappears but T-R relay will > >>> not release. > >>> I have tried different known-good 6EV7 tubes, have replaced a lot > >>> of the coupling / bypass caps in T-R circuits, did resistance / > >>> voltage checks, adjusted the VOX / VOX delay controls, tried other > >>> tubes in T-R circuit, etc. to no avail. > >>> What is real curious about this is that while waiting for it to go > >>> back into receive and T-R relay is engaged, IF YOU PULL THE 6EV7 FROM > >>> ITS SOCKET THE T-R RELAY STILL DOES NOT RELEASE. I suspect the issue > >>> is with the lead that goes from T-R relay coil to pin #1 on 6EV7 > >>> (somehow allowing enough leakage to ground?) or could it be the T-R > >>> relay coil itself I made sure socket / pins and all are clean on > >>> 6EV7. > >>> Any help appreciated, thanks. > >>> Perplexed, > >>> Byron WA5THJ. > >>> > >> > > > > > > ---------------------------------------------------------------------- > > Submissions: [EMAIL PROTECTED] > > Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in > > body > > Hopelessly Lost: [EMAIL PROTECTED] - help in body of message > > Zerobeat Web Page: - sponsored by > > ---------------------------------------------------------------------- > > > > > > ---------------------------------------------------------------------- > Submissions: [EMAIL PROTECTED] > Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body > Hopelessly Lost: [EMAIL PROTECTED] - help in body of message > Zerobeat Web Page: - sponsored by > ---------------------------------------------------------------------- 临猗摆拦拷电子科技有限公司   R   O

YouTube’s advertising revenue figure varies based on where you get your video views from. Let’s say, for instance, that the majority of video views come from India; your video could be making anywhere from $1.5 to $3 per thousand video views. But if your viewers are from the United States, your video could fetch anywhere from $2 to $4 per thousand video views.    G  T

 
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在未来，Apache Kylin还有可能为特定场景、特定类型的维度量身定制特别的编码方式，如在很多行业，身份证号码可能是一个重要的维度。但是身份证号码由于其特殊性而不能使用整数类型的编码（身份证号码的最后一位可能是X），其高基数的特点也决定了其不能使用Dict编码，在目前的版本中只能使用Fixed_length编码，但显然Fixed_length不能充分利用身份证号码中大部分字节是数字的特性来进行深度编码，因此存在一定程度的存储空间的浪费。   D    Y

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CUL, Byron. ----- Original Message ----- From: "Garey Barrell" <[EMAIL PROTECTED]>    O

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How much money should I spend each month? This is asked by college students at the start of every term, and it's become a hot topic of discussion following a controversial online post. The post was about a college student who demanded 4,500 yuan for monthly living expenses from her mom, reported China Daily  铮?G

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指定数据模型，定义维度和度量预计算Cube，计算所有Cuboid并保存为物化视图（存储到hbase中）执行查询时，读取Cuboid，运算，产生查询结果   铮?G建湖诵鞠敝信息技术有限公司去重计数在企业日常分析中应用广泛，如用户留存、销售统计、广告营销等。海量数据下的去重计数十分消耗资源，动辄几分钟，甚至几小时，Apache Kylin 如何做到秒级的低延迟精确去重呢？   C

  铮?N图1显示的是CNN的基础结构，现在大型深层的卷积神经网络(CNNs, 请注意这里是复数)通常由多个上述结构前后连接、层内调整组成，根据功能不同，我们称这些前后连接的结构处于不同阶段(stage)。虽然在主流CNNs中，不同stage里CNN会有不同的单元和结构，比如卷积核 (kernel)大小可能不同，激活函数(activition function) 可能不同，pooling操作可能不存在，但是图1的CNN结构应当能够包含所有的情况。   H

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   H Prices can greatly fluctuate depending on the performance of teams, promotions, opponent, etc, and if you were a sports nut you had a huge advantage in predicting the market over the non sports enthusiast. Playoffs. The real money is made in the playoffs when a ticket that cost $50 can sell for $500, literally. Flexibility – You do not have to be at the computer at a certain time to buy the tickets Availability – Nearly every sports ticket I buy any other person could have bought nearly identical tickets at one time or another, so I never felt like I was “stealing” tickets away from fans. I was just taking on risk, and if you know the market that risk is minimal.    H

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BI（Business Intelligence），即商务智能，是指用现代数据仓库技术、在线分析技术、数据挖掘和数据展现技术进行数据分析以实现商业价值。   A

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送给大家一句话:今日事,今日毕   U    K

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导入成功后，表的结构信息会以树状形式显示在页面的左侧，可以点击展开或收缩，如图2-2所示。 莱芜偈鲁科技股份有限公司   T

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