20100410.ba v04_n328.bam.20100410 >From ???@??? Sat Apr 10 04:35:00 2010 -0500 Date: Sat, 10 Apr 2010 10:34:52 GMT From: Old Tube Radios To: Old Tube Radios Subject: BOATANCHORS digest 4328 Message-Id: <20100410103453.15959791E38@minime.theporch.com> BOATANCHORS Digest 4328 Topics covered in this issue include: 1) Re: The Radio Amateur's Handbook - A. Frederick Collins by Roy Morgan 2) Re: The Radio Amateur's Handbook - A. Frederick Collins by HankVC 3) black wrinkle paint by Robert Kemp 4) Re: Lysco VFO by "Wilson Lamb" 5) Re: black wrinkle paint by "Al Parker" 6) Re: The Radio Amateur's Handbook - A. Frederick Collins by "Arden Allen" 7) Impedance of Collins mechaical filters by spr@earthlink.net 8) Technical Books available for download (Possible duplicate) by "k4pf@juno.com" 9) Very Special MRHS Event for International Marconi Day by Richard Dillman 10) [Resend] Boatanchors in the Sikorsky HO4S-3 (S-55) Helicopter by Jerry Proc 11) Re: Technical Books available for download by "B. Smith" 12) RE: Technical Books available for download by "Bill Hawkins" 13) Hallicrafters SC77A by Richard Loken 14) Re: Hallicrafters SC77A by Deane McIntyre 15) Re: Hallicrafters SC77A by Richard Loken 16) Re: Technical Books available for download by "KEN" ---------------------------------------------------------------------- From: Roy Morgan To: Old Tube Radios Subject: Re: The Radio Amateur's Handbook - A. Frederick Collins Message-Id: Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Apple Message framework v936) Date: Wed, 24 Mar 2010 00:02:30 -0400 Cc: Old Tube Radios On Mar 23, 2010, at 9:12 PM, Sandy wrote: > Is this downloadable as one big file anywhere or must it be done > "peacemeal"? Sandy, It IS one big file. I just surfed to that link and found that all the text is contained in single HTML file. Each chapter heading that appears as a link at the top refers to the spot in that web page farther down. The link with the file is not on ARRL.NET, but is: I assume you are using a Windows computer and have forgotten the details but I bet you can save the page as a "web page complete". If so, there will appear on your compute an HTML file and a sub directory with all the illustrations. All the figures are separate files that would otherwise need to be saved one by one. Do look for that feature in your browser (FireFox has it). Roy Roy Morgan k1lky@earthlink.net 529 Cobb St. Groton NY, 13073 Home: 607-898-3607 Cell: 301-928-7794 ------------------------------ From: HankVC Message-Id: <201003240611.o2O6BiQV015768@julie.lostwells.net> Subject: Re: The Radio Amateur's Handbook - A. Frederick Collins To: Old Tube Radios Date: Wed, 24 Mar 2010 00:11:44 -0600 (MDT) Cc: boatanchors@theporch.com (Old Tube Radios) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit The esteemed Paul Christensen has said: > > > One final comment: Collins dedicates the handbook to "William Marconi," > inventor of the wireless telegraph. Was William the "Americanized" version > of Marconi's given name? > Interesting article on this particular Collins. Thank you for posting it. Yes, "Guglielmo" is "William" in English. Marconi's mother was Irish, and much of his work was done in England, financed by British interests. He was fluent in British English, and contemporary new reports in English-speaking countries often referred to him as "William" rather than "Guglielmo." Hank ------------------------------ Message-ID: <4BAA379A.4090009@bobkemp.com> Date: Wed, 24 Mar 2010 11:02:34 -0500 From: Robert Kemp MIME-Version: 1.0 To: Old Tube Radios Subject: black wrinkle paint Content-Type: multipart/mixed; boundary="------------040109050004080006030300" This is a multi-part message in MIME format. --------------040109050004080006030300 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit What's the source for Black Wrinkle Paint. Had some about 4-5 years ago but don't recall where I got it? Harley Davidson comes to mind but wasn't there another source? Bob wa0vrc --------------040109050004080006030300 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ---REMAINDER OF MESSAGE TRUNCATED--- * * This post contains a forbidden message format * * (such as an attached file, a v-card, HTML formatting) * * Mail Lists at theporch.com only accept PLAIN TEXT * * If your postings display this message your mail program * * is not set to send PLAIN TEXT ONLY and needs adjusting * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * --------------040109050004080006030300-- ------------------------------ Message-ID: From: "Wilson Lamb" To: Old Tube Radios Cc: , Subject: Re: Lysco VFO Date: Wed, 24 Mar 2010 16:58:19 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0031_01CACB73.345BCEF0" This is a multi-part message in MIME format. ------=_NextPart_000_0031_01CACB73.345BCEF0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Here is a link, in case you get a chance to share with someone who might = know something about the Lysco VFO 380. I'd sure like to find = literature on it or even someone who has used one. 73, Wilson W4BOH http://picasaweb.google.com/wlinfometric/HAM# ----- Original Message -----=20 From: JAMES HANLON=20 To: Marty Reynolds=20 Cc: Wilson Lamb=20 Sent: Wednesday, March 24, 2010 12:15 PM Subject: Fw: Lysco VFO Marty, Does this sound familiar? Jim ----- Original Message -----=20 From: Wilson Lamb=20 To: Old Tube Radios=20 Cc: boATANCHORS@theporch.com=20 Sent: Monday, March 22, 2010 6:41 AM Subject: Lysco VFO As if the Signal Shifter were not enough to eat all my radio time, I = have=20 recently been blessed by the arrival of an apparently quite early = Lysco VFO.=20 The case is grey, 6.5"W X 2.25"H X 4.75"D. There is a twinlead output = line=20 and a grommet for power input and a small sliderule dial calibrated = for=20 80/40/20/10m. There ia one slide switch on the panel, unser the dial = and a=20 knob for frequency setting. There is a label, but the model number is faded. My best guess on the = number is 320. I have googled and found the 321, but it's nothing like the one I = have. Anyone in BA land have any info on this?? Wilson W4BOH=20 ------=_NextPart_000_0031_01CACB73.345BCEF0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ---REMAINDER OF MESSAGE TRUNCATED--- * * This post contains a forbidden message format * * (such as an attached file, a v-card, HTML formatting) * * Mail Lists at theporch.com only accept PLAIN TEXT * * If your postings display this message your mail program * * is not set to send PLAIN TEXT ONLY and needs adjusting * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ------=_NextPart_000_0031_01CACB73.345BCEF0-- ------------------------------ Message-ID: <013701cad733$8591cfb0$6401a8c0@aldesktop> From: "Al Parker" To: Old Tube Radios Subject: Re: black wrinkle paint Date: Thu, 8 Apr 2010 11:52:41 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Try AutoZone, I got some there a yr or 3 ago. Only black, but can be oversprayed litely if needed. Didn't come out too bad on a St. James Gray cabinet for me. 73, Al, W8UT ----- Original Message ----- From: "Robert Kemp" To: "Old Tube Radios" Sent: Wednesday, March 24, 2010 12:02 PM Subject: black wrinkle paint > What's the source for Black Wrinkle Paint. Had some about 4-5 years ago > but don't recall where I got it? Harley Davidson comes to mind but > wasn't there another source? > Bob > wa0vrc > ---------------------------------------------------------------------------- ---- > * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * > * ---REMAINDER OF MESSAGE TRUNCATED--- * > * This post contains a forbidden message format * > * (such as an attached file, a v-card, HTML formatting) * > * Mail Lists at theporch.com only accept PLAIN TEXT * > * If your postings display this message your mail program * > * is not set to send PLAIN TEXT ONLY and needs adjusting * > * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * > ------------------------------ Message-ID: <005401cad73f$242e0e30$c79e480c@KB6NAX> From: "Arden Allen" To: Old Tube Radios Subject: Re: The Radio Amateur's Handbook - A. Frederick Collins Date: Thu, 8 Apr 2010 10:15:46 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit > .......Yes, "Guglielmo" is "William" in English. If you are at all handy with Italian the pronunciations are similar. Arden Allen KB6NAX Adopt a shelter dog, save an innocent life, and make a friend forever =:-) ------------------------------ Message-ID: <21992253.1270748534894.JavaMail.root@elwamui-darkeyed.atl.sa.earthlink.net> Date: Thu, 8 Apr 2010 10:42:14 -0700 (GMT-07:00) From: spr@earthlink.net To: Old Tube Radios Subject: Impedance of Collins mechaical filters Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Folks, A coupe of weeks back, someone was aking about this. I found the magazine in question (CQ, March 1953) and for the model F455A-31 filter they used, the input and outpu impedances are both 8K. Regards, Scott ------------------------------ Mime-Version: 1.0 From: "k4pf@juno.com" Date: Thu, 8 Apr 2010 17:50:06 GMT To: Old Tube Radios Subject: Technical Books available for download (Possible duplicate) Message-Id: <20100408.135006.12785.1@webmail15.vgs.untd.com> Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Content-Type: text/plain; charset=ISO-8859-1 Hi, Gang Pete Millett has recently moved to a new hosting site, and expanded his collection of old electronics textbooks available for download. The new site is here: http://www.tubebooks.org/technical_books_online.htm One very good book is the GE Sideband Handbook, a compilation of all the SSB info appearing in the GE "Ham News". Included is the GE "SSB, Jr." the forerunner of the Central Electronics 10A. Pete's site can be rather slow, so I moved a copy of the GE SSB Manual to Rapidshare, since it is a large file (151MB): http://rapidshare.com/files/372823457/GE_Sideband_Handbook_1961.pdf 73, Ed Knobloch ------------------------------ Message-ID: <32761744.1270769248460.JavaMail.root@mswamui-bichon.atl.sa.earthlink.net> Date: Thu, 8 Apr 2010 16:27:28 -0700 (GMT-07:00) From: Richard Dillman To: Old Tube Radios Subject: Very Special MRHS Event for International Marconi Day Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable MRHS SPECIAL EVENT FOR INTERNATIONAL MARCONI DAY Details at the MRHS Web site http://www.radiomarine.org and below... In cooperation with the Marconi Conference Center the=20 Maritime Radio Historical Society will hold =E2=80=9CRadio Days=E2=80=9D=20 on 23/24 April to help celebrate the birthday of Guglielmo=20 Marconi. The public is invited to participate in=20 person and over the air. Coast station KPH will be activated from the 1913 Marconi receive=20 site at Marshall, CA. Amateur station K6KPH will be open for contacts. Historic ships SS JEREMIAH O=E2=80=99BRIEN KXCH and SS RED OAK=20 VICTORY KYVM will be on the air. Special talks and presentations will be given on 24 April --------------------------------------------------------- Radio Days will take place on two days, 23 and 24 April. The=20 event on the 24th is open to the public. On Friday 23 April the MRHS and the Marconi Conference Center=20 will host students of the 4th grade classes of schools nearby=20 the historic Marconi receive site in Marshall, on the east shore=20 of Tomales Bay. The historically registered site was built by=20 the American Marconi Company in 1913. Other students will be aboard the WWII Liberty ship SS JEREMIAH=20 O=E2=80=99BRIEN KXCH. MRHS member Denice Stoops will be aboard operating= =20 the original WWII Radiomarine radio console. Messages filed by=20 the students will be exchanged between KXCH and KPH on 425kc=20 (ship)/426kc (KPH). Initial calls will be made on 500kc. KPH will also be in operation on 4247.0kc. MRHS Transmitter Supervisor Steve Hawes will be aboard SS RED=20 OAK VICTORY KYVM, operating its original WWII ITT Mackay console=20 in communication with KPH on the same frequencies as KXCH. MRHS Chief Operator Richard Dillman will be on duty at Marshall,=20 keying the transmitters in Bolinas remotely just as was originally=20 done when KPH was at Marshall from the 1920s to 1942. Operations will take place between 1000 Pacific time/1700gmt to=20 1400 Pacific time/2100 gmt. K6KPH will be open for amateur contacts alternately on 3550kc=20 and 7050kc. A special QSL card will be issued for the event.=20 The operating hours for K6KPH will be announced in a message to=20 follow but we are planning to be operational in the late afternoon=20 and evening when propagation will be best on the frequencies above. The equipment at Marshall will include a remote control console=20 constructed by Steve Hawes as well as vintage receivers including=20 a National HRO-5, National SW-3 and RCA AR-88LF. **The Friday event is exclusively for the students and is not open=20 to the public.** On Saturday 24 April the public is cordially invited to view the=20 exhibits and meet MRHS personnel.=20 The program will include =E2=80=9CRadio Tales=E2=80=9D by Richard Dillman, = relating=20 the excitement and drama of maritime radio history.=20 An architectural history of the Marconi Conference Center will be=20 conducted by Steve Murch, who worked on the restoration of the center.=20 A recreated Branly/Marconi coherer, an early mechanical radio detector,=20 will be displayed and described by its builder, David Navone.=20 The history of KPH will be presented by Bill Ruck of the MRHS Transmitter= =20 Department. Denice Stoops, former KPH operator and the first female telegrapher=20 to be hired at KPH, will host a round table discussion of retired KPH=20 operators, describing what it was like to =E2=80=9Csit the circuit=E2=80=9D= at this=20 great coast station. Visitors will have the opportunity to file radiograms for delivery=20 to US addresses. These will be sent by Morse code for onward transmission= =20 and delivery to the recipient by an operator in a nearby town who will call= =20 and read the message just as in the glory days of commercial radiograms. More information and directions to the Marconi Conference Center is=20 available here: http://www.marconiconference.com/ Guests will be invited to walk the grounds of the historic and beautiful=20 site with views of wooded hills and the sparkling waters of Tomales bay. A complete schedule of events is available on line here (subject to change)= : http://marconiconference.org/documents/MRHS%20MCC%20Event%20Schedule.pdf The references to KSM in the schedule may be changed to KPH. There is no charge to attend this event. Inquiries may be directed to the MRHS by email at info@radiomarine.org We hope to see you there! =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D Richard Dillman Chief Operator, Coast Station KSM Maritime Radio Historical Society http://www.radiomarine.org =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D ------------------------------ Message-ID: <672604.6516.qm@web112309.mail.gq1.yahoo.com> Date: Thu, 8 Apr 2010 17:50:52 -0700 (PDT) From: Jerry Proc Subject: [Resend] Boatanchors in the Sikorsky HO4S-3 (S-55) Helicopter To: Old Tube Radios MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hello Everyone,=0A=0AThe next installment in my series on Canadian anti-sub= marine aircraft features the Sikorsky HO4S-3 (S-55) affectionately nickname= d the =E2=80=9CHorse=E2=80=9D.=0A=0AFirst taken on strength in 1952 by the = Royal Canadian Navy, its initial duty was that of a plane guard on the airc= raft carrier HMCS Magnificent. As the S-3 variant came into service, it wa= s assigned to Search and Rescue duties and was also used to develop tactics= for the use of helicopters in anti-submarine warfare. A secondary role wa= s the development of mine-clearing procedures. A distinctly Canadian contri= bution to rotary-winged ASW was manifested in its exploratory and experimen= tal work in operating large helicopters from destroyer escorts. In doing t= his, the RCN pioneered the deployment of large rotary-winged aircraft from= escort vessels. It was a concept that was soon copied by all the major nav= ies of the world.=0A=0Ahttp://jproc.ca/rrp/rrp3/ho4s3.html=0A=0APreviously = featured aircraft can be found at: http://jproc.ca/rrp/index.html=0A=0A--= =0ARegards,=0AJerry Proc=0AE-mail: jerry7proc@yahoo.com=0A=0A=0A _____= _____________________________________________________________=0AGet the nam= e you've always wanted @ymail.com or @rocketmail.com! Go to http://ca.promo= s.yahoo.com/jacko/ ------------------------------ Message-ID: From: "B. Smith" To: Old Tube Radios Subject: Re: Technical Books available for download Date: Fri, 9 Apr 2010 11:09:03 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit This is the mother lode of book sites. I quickly scanned the site and discovered "Aeronautical Radio" by Mr. M.F. Eddy.(Any relation to Eddy Currents? :-) Anyway on book page 231 (PDF file page 244) is a diagram of an A and N range antenna that was constructed entirely of 300 foot wire loops suspended between telephone poles. This type of early aeronautical radio range antenna construction was before the range sites utilized the familiar Tower type antennas. I've been told that when you when you were flying on a range constructed of this type of wire antenna you could always tell when the winds were stong as the signal varied due to the wires swinging in the breeze. :-) Clete Whitaker sent me hand drawing of these "wire" antennas several years ago for use in my presentation at the MRCA group at Gilbert Pa. 73 breck k4che ----- Original Message ----- From: To: "Old Tube Radios" Sent: Thursday, April 08, 2010 1:50 PM Subject: Technical Books available for download Hi, Gang Pete Millett has recently moved to a new hosting site, and expanded his collection of old electronics textbooks available for download. The new site is here: http://www.tubebooks.org/technical_books_online.htm One very good book is the GE Sideband Handbook, a _Sideband_Handbook_1961.pdf 73, Ed Knobloch ------------------------------ From: "Bill Hawkins" To: Old Tube Radios Subject: RE: Technical Books available for download Date: Fri, 9 Apr 2010 11:44:26 -0500 Message-ID: <3568ADD340D54C52A1DF451AFC7AE2EC@cyrus> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Another great book from that source is Langham's "High Fidelity Techniques" in which he discusses the wide range of what that means to various people. He also compares phase distortion IIRC to neutrinos, which were just an invisible correction factor in 1950. Then there's the guy who filled his garage with a concrete exponential horn ending in his entire living room wall. Good stuff, and sound tips on HiFi construction in the days of the big valves. I wore my copy out, glad to find it on the web. Bill Hawkins ----- Original Message ----- From: Sent: Thursday, April 08, 2010 1:50 PM Subject: Technical Books available for download Hi, Gang Pete Millett has recently moved to a new hosting site, and expanded his collection of old electronics textbooks available for download. The new site is here: http://www.tubebooks.org/technical_books_online.htm One very good book is the GE Sideband Handbook, a _Sideband_Handbook_1961.pdf 73, Ed Knobloch ------------------------------ Date: Fri, 09 Apr 2010 11:33:55 -0600 (MDT) From: Richard Loken Subject: Hallicrafters SC77A To: Old Tube Radios MIME-version: 1.0 Content-type: TEXT/PLAIN; charset=US-ASCII Gday lads, A copy of the above named receiver leaped out of somebody's barn and jumped into my lap the other day. The receiver is in surprisingly good shape with no front panel or chassis corrosion, an almost pristine interior, but widely distributed minor surface corrosion on the outside of the cabinet. It pays to live in a sub-arctic desert. I presume this is an S77A made in Canada, it has an announcement on the back telling me that I must have a license or the receiver could be seized and permanently stored in Her Majesty's garden shed, Her Majesty came to the throne in 1953 so that dates this radio at 1953 or later. Are there any S77A manuals on line? I obtained a free S77 manual from BAMA but no S77A manual can be obtained so easily. So am I correct that an SC77A is a Canadjin S77A? Are there likely to be any differences between an SC77A and an S77A other than the use of Rogers tubes and Aerovox capacitors? What are the differences between the S77 and the S77A? -- Richard Loken VE6BSV, Unix System Administrator : "Anybody can be a father Athabasca University : but you have to earn Athabasca, Alberta Canada : the title of 'daddy'" ** richardlo@admin.athabascau.ca ** : - Lynn Johnston ------------------------------ Mime-Version: 1.0 (Apple Message framework v753.1) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <5C451B3B-66EF-492E-91B3-BD2043DB44D0@ucalgary.ca> Content-Transfer-Encoding: 7bit From: Deane McIntyre Subject: Re: Hallicrafters SC77A Date: Fri, 9 Apr 2010 12:15:54 -0600 To: Old Tube Radios On 9-Apr-10, at 11:33 AM, Richard Loken wrote: > Gday lads, > > A copy of the above named receiver leaped out of somebody's barn > and jumped > into my lap the other day. The receiver is in surprisingly good > shape with > no front panel or chassis corrosion, an almost pristine interior, > but widely > distributed minor surface corrosion on the outside of the cabinet. > It pays > to live in a sub-arctic desert. > > I presume this is an S77A made in Canada, it has an announcement on > the back > telling me that I must have a license or the receiver could be > seized and > permanently stored in Her Majesty's garden shed, Her Majesty came > to the > throne in 1953 so that dates this radio at 1953 or later. > 1953 was the last year of radio receiving licensing in Canada so that pretty well dates this receiver. Could have been 1952 as the present Queen actually came to the throne Feb 6, 1952. Up to 1953, even before the beginning of broadcasting, all radio receivers in Canada had to be license at a cost of $1 at the begging increasing over the years to $3 by 1953. At some point (1930s ?) crystal sets were exempt as well as receivers used by the blind and morale receivers used by the armed forces. Television came to Canada Sept. 1952 and as the requlations said nothing about licensing of television sets they were exempt. In 1953 a television license fee, much higher that that for radio, was proposed but as 1953 was an election year this never came to be, and the radio license fee was dropped at the same time. A 15 percent tax was instead applied to all radios, televisions (as well as vacuum tubes I think) which was not repealed until 1971. 73, Deane McIntyre VE6BPO ------------------------------ Date: Fri, 09 Apr 2010 14:11:23 -0600 (MDT) From: Richard Loken Subject: Re: Hallicrafters SC77A To: Old Tube Radios Cc: Old Tube Radios MIME-version: 1.0 Content-type: TEXT/PLAIN; charset=US-ASCII On Fri, 9 Apr 2010, Deane McIntyre wrote: > 1953 was the last year of radio receiving licensing in Canada so that > pretty well dates this receiver. Could have been 1952 as the present Queen > actually came to the throne Feb 6, 1952. Well thank you Deane, that narrows down its time of manufacture quite nicely. -- Richard Loken VE6BSV, Unix System Administrator : "Anybody can be a father Athabasca University : but you have to earn Athabasca, Alberta Canada : the title of 'daddy'" ** richardlo@admin.athabascau.ca ** : - Lynn Johnston ------------------------------ Message-ID: From: "KEN" To: Old Tube Radios Subject: Re: Technical Books available for download Date: Sat, 10 Apr 2010 05:34:28 -0500 MIME-Version: 1.0 Content-Type: text/plain; format="flowed"; charset="iso-8859-1"; reply-type="original" Content-Transfer-Encoding: 7bit Hi breck, Ed & Gang, Back in WW2 days, I was in U.S. Army Air Corps' Civil Aeronautics Administration's program, "War Training Service" at Spartan Aeronautics School in Tulsa, Ok. The school had a foreign student who was taking flying lessons. While out on a solo cross-country flight, he "buzzed" a Low Frequency Radio Range station and caught the wire antenna on his tail wheel ripping the wire from its mountings putting the range station off the air! The School and the C.A.A."washed him out" of flying. He took up "Parachute Rigging". These radio navigation stations were what pilots depended on for guidance both good weather and especially during bad conditiions when they could not see their way, those under "Instrument Flight Rules". Pilots in aircraft equipped with ADF's (Automatic Direction Finders) could "Home in on" and navigate by use of these bearings on radio beacon station which radiated an omni-directional signal. Later range stations were composed of four vertical towers. Sorry, didn't mean to get 'strung out'! Ken N5CM ----- Original Message ----- From: "B. Smith" To: "Old Tube Radios" Sent: Friday, April 09, 2010 10:09 AM Subject: Re: Technical Books available for download > This is the mother lode of book sites. > I quickly scanned the site and discovered "Aeronautical Radio" by Mr. M.F. > Eddy.(Any relation to Eddy Currents? :-) > Anyway on book page 231 (PDF file page 244) is a diagram of an A and N > range > antenna that was constructed entirely of 300 foot wire loops suspended > between telephone poles. This type of early aeronautical radio range > antenna construction was before the range sites utilized the familiar > Tower > type antennas. I've been told that when you when you were flying on a > range > constructed of this type of wire antenna you could always tell when the > winds were stong as the signal varied due to the wires swinging in the > breeze. :-) > Clete Whitaker sent me hand drawing of these "wire" antennas several > years ago for use in my presentation at the MRCA group at Gilbert Pa. > > > 73 > > breck k4che > > ----- Original Message ----- > From: > To: "Old Tube Radios" > Sent: Thursday, April 08, 2010 1:50 PM > Subject: Technical Books available for download > Hi, Gang > > Pete Millett has recently moved to a new hosting site, and expanded > his collection of old electronics textbooks available for download. > The new site is here: > http://www.tubebooks.org/technical_books_online.htm > > One very good book is the GE Sideband Handbook, > a _Sideband_Handbook_1961.pdf > > 73, > Ed Knobloch > -- I am using the free version of SPAMfighter. We are a community of 7 million users fighting spam. SPAMfighter has removed 140 of my spam emails to date. Get the free SPAMfighter here: http://www.spamfighter.com/len The Professional version does not have this message ------------------------------ End of BOATANCHORS Digest 4328 ******************************