google seo -> telegram: @ehseo6
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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.
双色球第2017048期 L
CUL, Byron.
----- Original Message ----- From: "Garey Barrell" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, April 29, 2008 1:46 PM
Subject: Re: [drakelist] TR-4 TX Hang-Up
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F 减小了事实表的大小; 便于维度的管理和维护,增加、删除和修改维度的属性时,不必对事实表的大量记录进行改动; 维度表可以为多个事实表同时使用,减少重复工作。 F
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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. O
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V大乐透邻号码 必看
使用搜索引擎(谷歌/百度)、Kylin 的邮件列表的存档, Kylin 的 JIRA 列表 来寻求解决办法。 浏览 Kylin 官方网页,尤其是文档 和 常见问题 页面。 向社区求助,用户可以在订阅 Apache Kylin 的邮件列表之后,用个人邮箱向 Apache Kylin 邮件列表发送邮件,所有订阅了邮件列表的用户都会看到此邮件,并回复邮件以发表自己的见解。 D
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-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Garey Barrell Sent: Tuesday, April 29, 2008 5:16 PM To: Drakelist Subject: Re: [drakelist] TR-4 TX Hang-Up Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang ------------------------------------------------------------ ---------- Ron - That's a NEW one! :-) How long did the relay have to be energized to generate enough heat? Garey [EMAIL PROTECTED] wrote: > I saw once where the relay iron core was expanding do to the heat the > coil generated around it, which to this point is normal. But in this > case as the core expanded it shorted against a bare coil winding. > The core itself being at ground potential, when shorted against the > coil winding provided the ground path to key the relay. Once the > relay was unkeyed by removing power, it cooled, and worked again as > normal until it heated up again. So don't put aside the > possibility of a heat related problem in the relay itself. > > Ron / WB4HFN > > ------------------------------------------------------------ ---------- 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 ---------------------------------------------------------------------- ? L
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CUL, Byron. ----- Original Message ----- From: "Garey Barrell" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, April 29, 2008 1:46 PM Subject: Re: [drakelist] TR-4 TX Hang-Up 铮? P C
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