Re: [Drakelist] Possible problem with T-4XC xmtr
Howard, Hmmm. Give the loud pop and subsequent drop of output power, I'm wondering if you had a brief internal arc within one of your final tubes. A violent arc that involves the cathode could easily destroy a region of the cathode coating and thus reduce peak emission, yet allow the tube to continue to operate. But maybe you lost one of the tubes completely? Is your resting plate current normal? Dennis AE6C On Sun, Feb 21, 2010 at 3:58 PM, Howard Traxler htraxl...@earthlink.netwrote: Hi all, don't know that this question went out on the list: Friday I was tuning up my T-4XC on 80M. Heard a very loud POP came from somewhere behind the front panel. No smell of smoke or oazone. Never tune for more than 4 or 5 seconds at a time and never off-resonance more than 1 or 2 seconds. Before this incident, the xmtr tuned up to 120 to 140 watts (according to my TW-1 talking watt meter); after, it now peaks at about 80W. I had a QSO afterwords, so I know it's working some. Antenna match is about 1.3/1. Do you think I did something real bad or maybe it's just a tube or a plate choke or something? Where should I start to diagnose? Thanks, anybody. 73, Howard, WA9RYF ___ 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] Unsubscribe from email:
At 11:25 PM 02/22/10, Luther Nallie wrote: Hi guys, can you tell me how to unsubscribe from getting the emails, but still be able to access the archives. My mailbox is filling up but I would still like to be able to see what's going on by visiting Drakelist. The link at the bottom of every message tells you where to visit to get information about the list. I posted the url for the archives yesterday. 73, Thom k3hrn ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Unsubscribe from email:
You go to the URL at the end of every e-mail you receive from the group, log on and edit your preferences. On 23-Feb-10 04:25, Luther Nallie wrote: Hi guys, can you tell me how to unsubscribe from getting the emails, but still be able to access the archives. My mailbox is filling up but I would still like to be able to see what's going on by visiting Drakelist. Thank you, I enjoy all the input from the experts! Luther, KQ5O _ Hotmail: Free, trusted and rich email service. http://clk.atdmt.com/GBL/go/201469228/direct/01/ ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.733 / Virus Database: 271.1.1/2703 - Release Date: 02/22/10 07:34:00 -- Nigel A. Gunn, 1865 El Camino Drive, Xenia, OH 45385-1115, USA. tel +1 937 825 5032 Amateur Radio G8IFF W8IFF (was KC8NHF), e-mail ni...@ngunn.net www http://www.ngunn.net Member of ARRL, GQRP #11396, QRPARCI #11644, SOC #548, Flying Pigs QRP Club International #385, Dayton ARA #2128, AMSAT-NA LM-1691, AMSAT-UK 0182, MKARS, ALC, GCARES, XWARN. ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Unsubscribe from email:
On Feb 23, 2010, at 2:43 PM, Nigel Gunn G8IFF/W8IFF wrote: You go to the URL at the end of every e-mail you receive from the group, log on and edit your preferences. One of the options is to disable (turn off) email delivery, also known as vacation mode. That way you can read the postings on line without getting any emails, but still be able to post. Considering that you have to sign up and be approved to post, this can reduce the time and effort if you have a question and need an answer. You could also chose digest mode, where you get one email a day. On busy days you can just delete it, on slow days, take a look at it. A friend of mine calls it New York mode, because you can shout without listening. :-) Geoff. -- geoffrey mendelson N3OWJ/4X1GM Jerusalem Israel geoffreymendel...@gmail.com New word I coined 12/13/09, Sub-Wikipedia adj, describing knowledge or understanding, as in he has a sub-wikipedia understanding of the situation. i.e possessing less facts or information than can be found in the Wikipedia. ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] MacRatt
Hello, If anyone wants a new never used AEA MacRatt III operating manual and the 2 discs for the postage let me know off the list. wd8...@yahoo.com Tnx 73 Bill ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] Two questions...TR7 related
Hello to the group, Can anyone with some certainty advise what the coax cable part number is between boards on a TR7. It appears to be RG174 with a 26 gauge solid core. All replacements found have been 24 gauge...won't work has to plug into those little holes. In addition the source winds up shipping strandedguess they don't understand solid. BTW I'd like to strangle the guy that soldered the shield can for the Up Converter board to U401's can in three spots...hope I didn't fry it out. Second questionfront panel Fixed area RCV button. anybody know what page it is shown on, wired to. Per the operators manual the function appears to be only if you have an AUX 7 board installed. But it is doing some magical things... Thanks in advance, 73Carl WD8NHK ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] T-4X Sidetone on Spot
I have a T-4X paired with an R-4. In separate, I hear sidetone with the T-4X in Spot. Previous suggestion was that the electrolytic was leaky, so I replaced it with one from Hayseed. The sidetone is still audible in spot. Does this sound like a switch problem? Notice that the sidetone seems a little high pitched for my taste, but seem to recall that Drake used 1 kHz. Also, the sidetone volume seems weak even with the sidetone/anti Vox full clockwise. Weak mic amp/sidetone oscillator? Thanks, Curt KB5JO ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Two questions...TR7 related
On Tue, 23 Feb 2010 16:46:54 EST, gypsym...@aol.com wrote: Second questionfront panel Fixed area RCV button. anybody know what page it is shown on, wired to. Per the operators manual the function appears to be only if you have an AUX 7 board installed. But it is doing some magical things... Carl, The switch connections are shown on the Chassis and Parent Board Schematic, page 2-5 of the service manual. I suspect the magical things are the synthesizer VCO free-running when the switch is depressed because there is no PTO signal or fixed crystal signal in TX or RX, depending on which switch. Sorry, can't help you with the first question. :) 73 -Jim -- Ham Radio NU0C Lincoln, Nebraska, U.S.S.A. TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time! Give a man a URL, and he will learn for an hour; teach him to Google, and he will learn for a lifetime. HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/ http://radiojim(dot)exofire(dot)net http://incolor.inetnebr.com/jshorney http://www.nebraskaghosts.org ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
