[AMRadio] Wiring
Another tube newbie question from me... When building simple regens and QRP transmitters, what type of wiring should I be using? I've read that with regens, mechanical stability is key and wiring plays an important role. Does this mean to go as far as using solid conductors rather than stranded? The wire I have on hand at the moment from other projects is some 16 ga. silver plated teflon (19-strand I believe). Would this stuff work? Lastly, are there any websites or reading material geared towards newbie tube builders? I still have some real basic questions that I am ashamed to ask about because I feel some of this stuff I should probably know and probably should However, I'm still young was was born in the solid-state era. *grin* I also don't remember much, if any, tube stuff was actually taught for my ticket back in 1989. Thanks -- JT Croteau, N1ESE - Manchester, NH (FN42gx) Contest Manager, TARA Skirmish __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
[AMRadio] wiring diagram
I would like to buy a copy of the 1957 ARRL handbook. Specificaly I am looking for the wiring diagram for Lew McCoy's 1KW final using a pair of 4-250's in parallel (May 1998 E.R.) I am working on a restoration of a copy of this classic piece. Any help would be greatly appreciated. 73 (Bob Stewart K4BKC) From [EMAIL PROTECTED] Thu Jun 22 18:11:14 2006 Return-Path: <[EMAIL PROTECTED]> X-Original-To: amradio@mailman.qth.net Delivered-To: amradio@mailman.qth.net Received: from smtpclt03.spirittelecom.com (smtpclt03.spirittelecom.com [165.166.8.52]) by mailman.qth.net (Postfix) with ESMTP id 2A38E859C1A for ; Thu, 22 Jun 2006 18:11:14 -0400 (EDT) X-Report-Abuse-To: [EMAIL PROTECTED] X-DKIM: Sendmail DKIM Filter v0.2.1 smtpclt03.spirittelecom.com k5MM3kYA003621 DKIM-Signature: a=rsa-sha1; c=nowsp/nowsp; d=spirittelecom.com; s=spiritmail; t51013827; h=DomainKey-Signature:From:To:Subject: Date:Message-ID:MIME-Version:Content-Type: Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer: X-MIMEOLE:Importance:In-Reply-To:X-Virus-Scanned:X-Virus-Status; b=G q34lswzSsYmXy7DONizeS9ayPcmOVw4N/CPlW/VmD9aQnV/UfHclWxNtFIvbOwGURUy 8+y3p4i20UtXiQN88Q=DomainKey-Signature: a=rsa-sha1; s=spiritmail; d=spirittelecom.com; c=nofws; q=dns; h=from:to:subject:date:message-id:mime-version:content-type: content-transfer-encoding:x-priority:x-msmail-priority:x-mailer:x-mimeole:importance: in-reply-to:x-virus-scanned:x-virus-status; b=XUOkgML+Dz9xdEHS4pGM+Bx92DWDj/JHdKIa+/zitlzTR/85lHbgSknvZniOIyUxo MYraupcHNIRvyk8cnZZiQ=Received: from fmistheo (cpe-024-074-125-080.carolina.res.rr.com [24.74.125.80]) (user=tbellamy mech=LOGIN bits=0) by smtpclt03.spirittelecom.com (8.13.6/8.13.1) with ESMTP id k5MM3kYA003621 for ; Thu, 22 Jun 2006 22:03:47 GMT From: "Theo Bellamy" <[EMAIL PROTECTED]> To: "Discussion of AM Radio" Subject: RE: [AMRadio] wiring diagram Date: Thu, 22 Jun 2006 18:03:46 -0400 Message-ID: <[EMAIL PROTECTED]> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2869 Importance: Normal In-Reply-To: <[EMAIL PROTECTED]> X-Virus-Scanned: ClamAV 0.88/1561/Thu Jun 22 15:40:00 2006 on smtpclt03.spirittelecom.com X-Virus-Status: Clean X-BeenThere: amradio@mailman.qth.net X-Mailman-Version: 2.1.4 Precedence: list Reply-To: Discussion of AM Radio List-Id: Discussion of AM Radio List-Unsubscribe: <http://mailman.qth.net/mailman/listinfo/amradio>, <mailto:[EMAIL PROTECTED]> List-Archive: <http://mailman.qth.net/mailman/private/amradio> List-Post: <mailto:amradio@mailman.qth.net> List-Help: <mailto:[EMAIL PROTECTED]> List-Subscribe: <http://mailman.qth.net/mailman/listinfo/amradio>, <mailto:[EMAIL PROTECTED]> X-List-Received-Date: Thu, 22 Jun 2006 22:11:14 - Bob, I have one. I can scan it and email it to you if you like. 73, Theo K4MO -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of bob stewart Sent: Thursday, June 22, 2006 3:42 PM To: amradio@mailman.qth.net Subject: [AMRadio] wiring diagram I would like to buy a copy of the 1957 ARRL handbook. Specificaly I am looking for the wiring diagram for Lew McCoy's 1KW final using a pair of 4-250's in parallel (May 1998 E.R.) I am working on a restoration of a copy of this classic piece. Any help would be greatly appreciated. 73 (Bob Stewart K4BKC) __ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net AMfone Website: http://www.amfone.net AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb
Re: [AMRadio] Wiring
N1ESE wrote: I've read that with regens, mechanical stability is key and wiring plays an important role. Does this mean to go as far as using solid conductors rather than stranded? Solid versus stranded isn't the key point (although heavy-gage solid wire is probably best) but rather that of the rigidness ofall the circuit components. It is best to mount things in ways that stop them from "springing" and "boinging" around when vibration is present. Use of terminal strips/tie-points for every every joint (rather than connections up in the air) for example... Steve WD8DAS [EMAIL PROTECTED] http://www.wd8das.net/ Radio is your best entertainment value. More new features than ever. Check out the new AOL Mail ! - http://webmail.aol.com __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
[AMRadio] Wiring issues for BC-1T
I've been reading the Gates BC-1T manual and found two instances where they state that #4 wire should be used. One says: "3) ...provide #4 or larger primary wiring from entrance box to transmitter". The other is about carrier shift at 100% modulation: "9) Carrier shift: 3% or less between 0 and 100% modulation provided wire size in point 3 (above) is followed..". They have got to be kidding! Of course I know this is assuming possibly 24/7 commercial operation at the full KW, but still, #4 wire for a 1000 watt tx, PEP of 4000 watts w/100% modulation? What the heck am I missing here? GE Brian, I don't think you're missing anything.but would suggest you step back into the time frame when transmitters like the BC-1T were popular. 1. Wiring insulation was a factor...It's better today than back then. 2. 1Kw and .25kw Bc transmitters were spread out over the USA and it was the small towns/rural communities that had "local" radio stations. Often, the transmitter was out in the country and often at the end or near end of a transmission line. Voltage "sag" was a real issue. Dimming the lights at 100% modulation wasn't a joke. Some engineering was done by a local electrician whose total experience level was connecting the chicken house to the main barn with two wires. No disrespect here, but just the truth. 3. I worked at a 5kw, 5-tower directional on 590kc (Collins driver and linear) and the transmitter was located in a rural county setting literally at the end of the line as far as AC was concerned. We had the power company locate pole pigs on a stand directly behind the transmitter building. The idea was to have as much voltage and current as possible as close to the transmitter as we could. Like your suggestion, we tied the mains directly to the transmitter and amplifier through a breaker panel with one humongous (sp) switch. Leads were as large as possible (I don't recall the gauge) but were short by most standards due to the pole pigs being located within a few feet of the transmitter. IR drop, etc.. By ham radio standards, you probably don't need all the "punch" that Gates and other manufacturers recommended. That said, I would wire the whole shebang with the largest wire I could afford. Just keeping in mind the rest of the AC transmission system from the power company to the breaker box in the house (and beyond). Hope this helps. Best of luck with a great old transmitter. We all want pictures when it's done. Preferably with the tubes lit and the background lighting subdued. YMMV 73 de W4MIL Chuck AOL now offers free email to everyone. Find out more about what's free from AOL at AOL.com. __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
[AMRadio] Wiring diagram for Gates Stereo Statesman Broadcast Audio Console
Thanks to Paul, WA3VJB I have printed the manual for the Gates Stereo Statesman Broadcast Audio Console. It contains general information such as specs and the schematics of the various amplifier modules. It DOES NOT contain a wiring diagram for the wiring of the Console itself. I now need the console wiring diagram showing power supply hookup and the wiring in the console of the INPUTS and OUTPUTS. The part of the manual, I now have, is very helpful, but my engineer son, N5ASM, says the console wiring diagram would be very helpful. STILL LOOKINGanyone know a broadcast station using a Gates Stereo Statesman Audio console?? Many thanks to Paul and all who read this. 73, John, K5PGW Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
