Re: [Drakelist] TR7 20m Issue
For what is is worth, MY TR-7 did almost that same thing a few months ago. I primarily use 160 80, however decided to bounce up to 20. The display would not lock, there was no receive. I too switched though all the bands, they worked, but returning to 20 it still wouldn't lock. I also ran through the bands using the remote VFO, 20 remained dead. Powering the rig on and off had no effect. Other then knowing that I didn't have a fully functioning radio, I wasn't really troubled. However, next time and since that time, when I checked, 20 is just fine.. I have basically shrugged my shoulders and will worry about if it becomes a permit issue or other bands start to fail too. Keeping the list active, thanks to all who contribute! Steve - W1TAV - Original Message - From: bjon...@mindspring.com To: drakelist@zerobeat.net Sent: Sunday, June 14, 2009 9:28 AM Subject: [Drakelist] TR7 20m Issue Since it seems the list is in the summer doldrums.. I'll throw something out there... About two weeks ago I found time to hop on the radio.. While tuning around 20m the band went dead silent (think unplugging the antenna) and the digital display lost the leading 1 (so instead of 14.150 it was 4.150). I switched through all of the other bands and they were fine (display displayed properly and noise level was consistent with the band conditions) but when I switched back to 20m it was still screwed up. I turned off the radio (waited for the fan to spin down) and when I turned it back on everything was normal. Has anyone seen this behavior before and should I be worried about it or wait until it happens more often? 73 Brian KD4UYP ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] TR7 20m Issue
The TR7 has a low and high frequency VCO. The low frequency VCO is for 20 meters and below, the high frequency VCO is for the 15 and 10 meter band or any frequency tuned by those bands. Since the TR7 only fails on 20 meter band that could be caused by the VCO not locking to frequency at the high end of its range. The problem could be as simple as a lower than normal voltage from the power supply. Other problems would include a low frequency VCO problem or improper alignment which could have drifted with age. Its also possible the band switch is dirty, the band select encoding from the band switch is not switching properly. It also possible to have a bad translator board not properly inturpting the enc ode range, but that usually effects more than just one band . Ron / WB4HFN - Original Message - From: Steve Belcher wa1...@juno.com To: bjon...@mindspring.com, drakelist@zerobeat.net Sent: Sunday, June 14, 2009 10:31:00 AM GMT -05:00 US/Canada Eastern Subject: Re: [Drakelist] TR7 20m Issue For what is is worth, MY TR-7 did almost that same thing a few months ago. I primarily use 160 80, however decided to bounce up to 20. The display would not lock, there was no receive. I too switched though all the bands, they worked, but returning to 20 it still wouldn't lock. I also ran through the bands using the remote VFO, 20 remained dead. Powering the rig on and off had no effect. Other then knowing that I didn't have a fully functioning radio, I wasn't really troubled. However, next time and since that time, when I checked, 20 is just fine.. I have basically shrugged my shoulders and will worry about if it becomes a permit issue or other bands start to fail too. Keeping the list active, thanks to all who contribute! Steve - W1TAV - Original Message - From: bjon...@mindspring.com To: drakelist@zerobeat.net Sent: Sunday, June 14, 2009 9:28 AM Subject: [Drakelist] TR7 20m Issue Since it seems the list is in the summer doldrums.. I'll throw something out there... About two weeks ago I found time to hop on the radio.. While tuning around 20m the band went dead silent (think unplugging the antenna) and the digital display lost the leading 1 (so instead of 14.150 it was 4.150). I switched through all of the other bands and they were fine (display displayed properly and noise level was consistent with the band conditions) but when I switched back to 20m it was still screwed up. I turned off the radio (waited for the fan to spin down) and when I turned it back on everything was normal. Has anyone seen this behavior before and should I be worried about it or wait until it happens more often? 73 Brian KD4UYP ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] List Downtime
Just wondering if I should continue the list, or simply remove it from the server? Thom Read your original down for a glitch last week. In RE above...do you want to see a grown man cry. Carl Hibbard ** Download the AOL Classifieds Toolbar for local deals at your fingertips. (http://toolbar.aol.com/aolclassifieds/download.html?ncid=emlcntusdown0004) ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] TR7 20m Issue
Steve - The VCOs often fail to lock at the high end of their range because of the 24 VDC DC-DC converter power supply. The two E cores of the converter are merely glued together, and quite a few have come unglued at least partially, reducing the efficiency of the supply and lowering the 24V. This voltage is used to steer the PLL, and a low voltage limits the range covered by the PLL. The 24VDC regulated voltage is on Pin 2 of the Power Supply board, which is the one right behind the front panel Drake logo with the row of trimpots across the top. Be careful to not disturb those pots, especially the one closest to the right side of the radio. Which is why it's a good choice to measure that voltage on the connector at the bottom of the card rather than trying to poke around from the top. IF the voltage is low, carefully press in on the front half of the transformer core to see if the voltage comes up. IF that core moves at all, and/or the voltage does come up, you'll need to remove that card and re-glue the two core halves together. Again, _watch out for the pots_ !! 73, Garey - K4OAH Glen Allen, VA Drake 2-B, 4-B, C-Line TR-4/C Service Supplement CDs www.k4oah.com wb4...@comcast.net wrote: The TR7 has a low and high frequency VCO. The low frequency VCO is for 20 meters and below, the high frequency VCO is for the 15 and 10 meter band or any frequency tuned by those bands.Since the TR7 only fails on 20 meter band that could be caused by the VCO not locking to frequency at the high end of its range. The problem could be as simple as a lower than normal voltage from the power supply. Other problems would include a low frequency VCO problem or improper alignment which could have drifted with age.Its also possible the band switch is dirty, the band select encoding from the band switch is not switching properly.It also possible to have a bad translator board not properly inturpting the encode range, but that usually effects more than just one band. Ron / WB4HFN - Original Message - From: Steve Belcher wa1...@juno.com To: bjon...@mindspring.com, drakelist@zerobeat.net Sent: Sunday, June 14, 2009 10:31:00 AM GMT -05:00 US/Canada Eastern Subject: Re: [Drakelist] TR7 20m Issue For what is is worth, MY TR-7 did almost that same thing a few months ago. I primarily use 160 80, however decided to bounce up to 20. The display would not lock, there was no receive. I too switched though all the bands, they worked, but returning to 20 it still wouldn't lock. I also ran through the bands using the remote VFO, 20 remained dead. Powering the rig on and off had no effect. Other then knowing that I didn't have a fully functioning radio, I wasn't really troubled. However, next time and since that time, when I checked, 20 is just fine.. I have basically shrugged my shoulders and will worry about if it becomes a permit issue or other bands start to fail too. Keeping the list active, thanks to all who contribute! Steve - W1TAV - Original Message - From: bjon...@mindspring.com To: drakelist@zerobeat.net Sent: Sunday, June 14, 2009 9:28 AM Subject: [Drakelist] TR7 20m Issue Since it seems the list is in the summer doldrums.. I'll throw something out there... About two weeks ago I found time to hop on the radio.. While tuning around 20m the band went dead silent (think unplugging the antenna) and the digital display lost the leading 1 (so instead of 14.150 it was 4.150). I switched through all of the other bands and they were fine (display displayed properly and noise level was consistent with the band conditions) but when I switched back to 20m it was still screwed up. I turned off the radio (waited for the fan to spin down) and when I turned it back on everything was normal. Has anyone seen this behavior before and should I be worried about it or wait until it happens more often? 73 Brian KD4UYP ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] FS three MS7 speakers P 75 phone patch
I have three spare MS7 speakers available. All work like they should,no sticky paint. All look excellent,except one of the three has a spst switch installed in bottom of cabinet towards front,I suppose was used with phone patch (to mute speaker). It is really not noticable unless you look for it. Easily removed,you'll just have a spare hole in cabinet bottom. $90.00 shipped CONUS for either of the first two, $75.00 for the one with the switch installed (shipped CONUS) Exc. comdition P 75 phone patch,one knob missing aluminum insert $30.00 shipped CONUS $250.00 shipped if you want all three MS7s and P 75 Thanks 73 Paul AD3G Blank Bkgrd.gif___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Fw: List Downtime
Hi Thom Please keep the Drakelist going if possible. I read and file almost all of the threads and have used the list several times in the last year to resolve some very difficult technical issues with my C line. I believe the service you are providing is a very valuable contribution to the Drake community. 73 Wade VA3HM -Original Message- From: drakelist-boun...@zerobeat.net [mailto:drakelist-boun...@zerobeat.net] On Behalf Of Terry Hart Sent: June 15, 2009 5:00 PM To: k8...@sbcglobal.net; drakelist@zerobeat.net Subject: Re: [Drakelist] Fw: List Downtime I'll second all of that! ( For TR 7 read R4 B and T4 XB). Terry, G3VFO - Original Message - From: k8...@sbcglobal.net To: drakelist@zerobeat.net Sent: Monday, June 15, 2009 1:00 AM Subject: [Drakelist] Fw: List Downtime Thom, I'll throw in my 2 cents. I don't post very often, but I have a separate Drakelist folder in my Outlook Express that automatically catches all the postings and I read them every single day. The list already helped me fix a TR-7 and I'm thankful for the list and archives. It's a great asset and I appreciate it like everybody else who has responded. Dave / K8JDC - Original Message - From: Thom LaCosta k3...@zerobeat.net To: drakelist@zerobeat.net Sent: Sunday, June 14, 2009 7:37 AM Subject: Re: [Drakelist] List Downtime At 07:32 AM 06/12/09, Thom LaCosta wrote: Apologies for the recent list downtime. An automated update to the server software did not restore the settings for the mailing lists. Is anyone here? Just wondering if I should continue the list, or simply remove it from the server? Thom ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] FS: Drake B Line
An extremely nice Drake T-4XB, R-4B, AC-4, and MS-4. Includes interconnecting cables, WARC band crystals, 160M crystals, the AC-4 was rebuilt with the AC-4R power supply upgrade (http://www.theheathkitshop.com/page6/page6.html) and includes original manuals for the R-4B and T-4XB. Please contact off list at w8...@comcast.net. Do NOT do a REPLY ALL. Bob W8JHA ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Fw: List Downtime
I agree with the helpfulness of the list.. I read every one. -Original Message- From: drakelist-boun...@zerobeat.net [mailto:drakelist-boun...@zerobeat.net] On Behalf Of wmacleod Sent: Tuesday, June 16, 2009 8:19 PM To: drakelist@zerobeat.net Subject: Re: [Drakelist] Fw: List Downtime Hi Thom Please keep the Drakelist going if possible. I read and file almost all of the threads and have used the list several times in the last year to resolve some very difficult technical issues with my C line. I believe the service you are providing is a very valuable contribution to the Drake community. 73 Wade VA3HM -Original Message- From: drakelist-boun...@zerobeat.net [mailto:drakelist-boun...@zerobeat.net] On Behalf Of Terry Hart Sent: June 15, 2009 5:00 PM To: k8...@sbcglobal.net; drakelist@zerobeat.net Subject: Re: [Drakelist] Fw: List Downtime I'll second all of that! ( For TR 7 read R4 B and T4 XB). Terry, G3VFO - Original Message - From: k8...@sbcglobal.net To: drakelist@zerobeat.net Sent: Monday, June 15, 2009 1:00 AM Subject: [Drakelist] Fw: List Downtime Thom, I'll throw in my 2 cents. I don't post very often, but I have a separate Drakelist folder in my Outlook Express that automatically catches all the postings and I read them every single day. The list already helped me fix a TR-7 and I'm thankful for the list and archives. It's a great asset and I appreciate it like everybody else who has responded. Dave / K8JDC - Original Message - From: Thom LaCosta k3...@zerobeat.net To: drakelist@zerobeat.net Sent: Sunday, June 14, 2009 7:37 AM Subject: Re: [Drakelist] List Downtime At 07:32 AM 06/12/09, Thom LaCosta wrote: Apologies for the recent list downtime. An automated update to the server software did not restore the settings for the mailing lists. Is anyone here? Just wondering if I should continue the list, or simply remove it from the server? Thom ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] FS MS7 speaker
P75 and two exc. cond MS7's sold THANK YOU! Still have the MS7 with switch installed in bottom available $75.00 shipped CONUS thanks to ALL who replied Paul AD3G Blank Bkgrd.gif___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
