20070519.ba v04_n052.bam.20070519 >From ???@??? Sat May 19 18:27:52 2007 -0500 Date: Sat, 19 May 2007 23:26:56 GMT From: Old Tube Radios To: Old Tube Radios Subject: BOATANCHORS digest 4052 Message-Id: <20070519232704.081BA470154@srvr1.theporch.com> BOATANCHORS Digest 4052 Topics covered in this issue include: 1) Dayton Hamfest coord.s by stuck in 50s 2) Re: Dayton Hamfest coord.s by "Larry WA9VRH" 3) Re: Dayton Hamfest coord.s by "Don Reaves" 4) FS: FLUKE 1953A Frequency Counter by "Dick, W1KSZ" 5) Tube tester adaptors by John Sehring 6) Collins Mechanical Filter by John Sehring 7) Books For Sale by John Sehring 8) FW: Wanted by "Ed Sieb" 9) Heath SWR Bridges by John Sehring 10) Thanks by John Sehring 11) Re: Heath SWR Bridges by Bob Roehrig 12) Re: Heath SWR Bridges by "David Thompson" 13) Re: Heath SWR Bridges by brianclarke01@optusnet.com.au 14) Re: Heath SWR Bridges by brianclarke01@optusnet.com.au 15) Re: Heath SWR Bridges by Bob Roehrig 16) Re: Heath SWR Bridges by brianclarke01@optusnet.com.au 17) Re: Heath SWR Bridges by "Arden Allen" 18) Re: Heath SWR Bridges by "Arden Allen" 19) Re: Heath SWR Bridges by brianclarke01@optusnet.com.au 20) Re: Heath SWR Bridges by wb3fau@att.net 21) Now That's A Transmitter - Featuring the RCA TE-147 by Jerry Proc 22) Re: Heath SWR Bridges by "Brian A Clarke" ---------------------------------------------------------------------- Date: Mon, 14 May 2007 20:50:37 -0400 (EDT) From: stuck in 50s Message-Id: <200705150050.l4F0obwk023288@fracas.netboobie.org> To: Old Tube Radios Subject: Dayton Hamfest coord.s I'm @ 2309 in the fleabie. K4OZY @ 2208 & 9. Who else praytell? Marty aka aa4rm ...the guy with the complete Navy RAS HRO-like thing, a pioneer NC-100 red-stripe, & a CV-305 two-channel multi-shift FSK demod - the last word for a R-390A & other e-detritus ------------------------------ Message-ID: <005e01c7968e$2946b290$e00b1aa5@32V3> From: "Larry WA9VRH" To: Old Tube Radios Subject: Re: Dayton Hamfest coord.s Date: Mon, 14 May 2007 20:12:51 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit 1943-1944 Larry WA9VRH 75A-4, Gonset G-76 and power supply and more stuff! ----- Original Message ----- From: "stuck in 50s" To: "Old Tube Radios" Sent: Monday, May 14, 2007 7:50 PM Subject: Dayton Hamfest coord.s > I'm @ 2309 in the fleabie. K4OZY @ 2208 & 9. > > Who else praytell? > > Marty aka aa4rm > > ...the guy with the complete Navy RAS HRO-like thing, a pioneer > NC-100 red-stripe, & a CV-305 two-channel multi-shift FSK > demod - the last word for a R-390A > > & other e-detritus > > > > ------------------------------ Message-ID: <4bc9f60a0705142248r69f10e7n2b3a9341293c62f3@mail.gmail.com> Date: Tue, 15 May 2007 00:48:07 -0500 From: "Don Reaves" To: Old Tube Radios Subject: Re: Dayton Hamfest coord.s MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_197130_19413338.1179208087791" ------=_Part_197130_19413338.1179208087791 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline 938-940 Lots of Collins, Drake, and Military Junque. Marty, I want to meet you, to see if you speak in person with the same dialect you write here. :-) Last few years, I noted one could barely see the faded painted space numbers. Need GPS coordinates. 73 Don W5OR On 5/14/07, Larry WA9VRH wrote: > > 1943-1944 > Larry WA9VRH > > 75A-4, Gonset G-76 and power supply and more stuff! > > > ----- Original Message ----- > From: "stuck in 50s" > To: "Old Tube Radios" > Sent: Monday, May 14, 2007 7:50 PM > Subject: Dayton Hamfest coord.s > > > > I'm @ 2309 in the fleabie. K4OZY @ 2208 & 9. > > > > Who else praytell? > > > > Marty aka aa4rm > > > > ...the guy with the complete Navy RAS HRO-like thing, a pioneer > > NC-100 red-stripe, & a CV-305 two-channel multi-shift FSK > > demod - the last word for a R-390A > > > > & other e-detritus > > > > > > > > > > ------=_Part_197130_19413338.1179208087791 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 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ------=_Part_197130_19413338.1179208087791-- ------------------------------ Message-ID: <4649E5A3.6090205@earthlink.net> Date: Tue, 15 May 2007 12:53:55 -0400 From: "Dick, W1KSZ" MIME-Version: 1.0 To: Old Tube Radios Subject: FS: FLUKE 1953A Frequency Counter Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit I have two of these counters. They are 125 MHz counters with room to add a pre-scaler if you wish. They have 9 digit readout and go down to 10 second gate time (0.1 Hz readout). Small size (13"W X 3"H X 14"D). I checked one on the bench against my GPS Controlled Frequency Standard and it read 7.9 Hz high at 10 MHz. Adjustment is possible (if I can find the tool !!). They are $50 each plus packing and shipping from 02421. -- 73, Dick, W1KSZ ------------------------------ Content-Disposition: inline Content-Transfer-Encoding: binary Mime-Version: 1.0 From: John Sehring To: Old Tube Radios Subject: Tube tester adaptors Content-Type: text/plain Message-Id: <20070516144329.1F74C344379@filter6.e-filtering.net> Date: Wed, 16 May 2007 08:43:29 -0600 (MDT) I've got two tuber tester "adaptors", by B&K. One says "3DG4 Adaptor Model TC-163" and other "TC-75 Adaptor". Both are octal type at both ends. Any idea what these're used for? I've got a B&K 700 TT but no mention of these adaptors in its paperwork. Thanks. --John Sehring WB0EQ/VE6 ------------------------------ Content-Disposition: inline Content-Transfer-Encoding: binary Mime-Version: 1.0 From: John Sehring To: Old Tube Radios Subject: Collins Mechanical Filter Content-Type: text/plain Message-Id: <20070516152443.901CC2B8F44@filter6.e-filtering.net> Date: Wed, 16 May 2007 09:24:43 -0600 (MDT) I've got a 12 kHz Collins mechanical filter to sell. Any suggestions on the best place to post it, in addition to the BA list of course, and price? Tnx --John Sehring WB0EQ/VE6 ------------------------------ Content-Disposition: inline Content-Transfer-Encoding: binary Mime-Version: 1.0 From: John Sehring To: Old Tube Radios Subject: Books For Sale Content-Type: text/plain Message-Id: <20070516153533.755D22068A3@filter6.e-filtering.net> Date: Wed, 16 May 2007 09:35:33 -0600 (MDT) Response has been underwhelming! Must be a pricing problem. So, once again, Books for sale: A. "Practical Radio Communication: Principles-Systems-Equipment-Operation", Nilson & Hornung, McGraw-Hill, 1935 (this is the 1st edition of it), 758 pgs. Cover in barely-fair condition, pages are good. There is a companion book, a Q&A for the 1st Class Radiotelephone License exam (I don't have it). Chapters: Direct Current Electricity & Magnetism; Alternating Current Electricity; Introduction to Vacuum Tubes; Transmitting Circuit Principles; Receiving Circuit Principles; Antennas & Wave Propagation; Studio Acoustics & Apparatus; Control Room Equipment & Operation; Broadcast Transmitters; Communication Transmitters; Radio Receivers; Radio Aids to Navigation; Rectifier Units; Dynamo Electric Machinery & Meters; Storage Batteries. Appendices: The New Tube Numbering System; RCA, Radiotron-Cunningham Radio Tube Chart (Symbols & Connections); Characteristics of Transmitting Radiotrons, Amateur Types (2 parts); Characteristics of Rectifier Tubes; Characteristics of Western Electric Vacuum Tubes; Bibliography. Great peek into the state of the commercial art in 1935. In addition to well-explained theory, has lots of practical info on broadcast, marine, aircraft & police radio systems for receiving & transmitting. $12 plus postage. B. "Electronics Circuit Designer's Casebook Vol. II", Pub. by Electronics Magazine (a McGraw-Hill pub.), circa 1965. Sections: Measurements; Control; Amplification; Conversion; Sensing & Comparing; Generation; Design Theory; Logic. Written right at the edge of the appearance of IC's, for the electronic engineer, sophisticated, some math in filter areas. Fair-good condition, softcover. 217 pgs. Free plus postage. --John Sehring WB0EQ/VE6 ------------------------------ From: "Ed Sieb" To: Old Tube Radios Subject: FW: Wanted Date: Thu, 17 May 2007 12:06:03 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Please reply to: YUKE.RF@forces.gc.ca Not me! Ed, VA3ES -----Original Message----- From: YUKE.RF@forces.gc.ca Sent: Thursday, May 17, 2007 10:54 AM To: baswaplist@foothill.net Subject: Wanted I am looking for the wooden board used to mount the Wireless Set number 19 in a truck or ground station. The details are..CARRIER,SETS, No 23, Part number ZA10315, PC82507. Also looking for battery boxes or good picture of the same. Thanks Yuke, Rick Cpl 431 Sqn (Snow Birds) Moose Jaw, Saskatchewan Canada ------------------------------ Content-Disposition: inline Content-Transfer-Encoding: binary Mime-Version: 1.0 From: John Sehring To: Old Tube Radios Subject: Heath SWR Bridges Content-Type: text/plain Message-Id: <20070517195838.2C6DB344EB5@filter6.e-filtering.net> Date: Thu, 17 May 2007 13:58:38 -0600 (MDT) I recall a thread a while back about the accuracy of Heath SWR bridges. The AM-2 and HM-11 are exactly the same under the skin (different case color). I've had a numbe of them. I was struck by the difference in their build quality, which is surprising to me, what with Heath's crystal-clear assembly directions. It has to do with the way the simulated piece of coax, which contains the pickup circuitry, is put together. I have the original assy instructions so can ck on how this is supposed to be. That's gonna have a big impact on their performance, e.g. accuracy, esp. above 30 MHz. They are rated to be useable from 160 to 2 m but that says nothing at all about accuracy. I used a Heath Cantenna to ck their performance. The HN-31 is rated as having an SWR of less than 1.5:1 up to 300 MHz & 2.0 up to 4 MHz. Up to 30 MHz, they all read vy close to 1:1 into the Cantenna. On 6 m, one of the bridges needed slight adjustment of the values of the resistors labeled "R" to get the bridge to read 1:1 at 52 MHz even after I physically realigned the bridge to conform with the assy directions. (I have no better SWR bridge than these Heath's to ck against, so am assuming the "goodness" of the Cantenna at 6 m.) Also, ck the bridges both ways (bidirectionally) to make sure they're symmetric. So my conclusion is, they're fine at HF, a bit off at 6 m & above. --John Sehring WB0EQ/VE6 ------------------------------ Content-Disposition: inline Content-Transfer-Encoding: binary Mime-Version: 1.0 From: John Sehring To: Old Tube Radios Subject: Thanks Content-Type: text/plain Message-Id: <20070517201605.24DBB2E1544@filter6.e-filtering.net> Date: Thu, 17 May 2007 14:16:05 -0600 (MDT) Many thanks to all who gave me feedback on my manuscript about antennas in trees. I took lots of advice from you all, rewrote it & the article was accepted by QST's Technical Correspondance column. --John Sehring WB0EQ/VE6 ------------------------------ Date: Thu, 17 May 2007 15:20:06 -0500 (CDT) From: Bob Roehrig To: Old Tube Radios Cc: Old Tube Radios Subject: Re: Heath SWR Bridges Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed On Thu, 17 May 2007, John Sehring wrote: > So my conclusion is, they're fine at HF, a bit off at 6 m & above. I'd agree with that. You can check your Cantenna with an ohmeter. I find that mine is slightly off (I forget now what it actually is) but good enough. I have made my own SWR bridges using a piece of RG-8 for the pickup device by stripping off the outer covering, then squeezing the braid together to increase its diameter, then working a couple of pieces of hookup wire under the braid, then stretching the braid back again. One problem with some bridges is that if the pickup element is too short and/or the meter not sensitive enough, then they are not sensitive enough at 160 meters. Bob Roehrig Aurora University Telecom dept. broehrig@aurora.edu K9EUI W9ZGP WD2XSH/19 630-844-4898 fax 630-844-4222 "Nostalgia is a thing of the past" ------------------------------ Message-ID: <00f401c798ce$7912d230$dc659a04@yourxb2x7j77gn> From: "David Thompson" To: Old Tube Radios Subject: Re: Heath SWR Bridges Date: Thu, 17 May 2007 17:58:14 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit AM-2 with 100 watts output 3885 1.14 7290 1.10 14280 1.10 29000 1.20 HM-15 3885 1.25 7290 1.10 14280 1.20 29000 1.20 Heath Dummy Load. I have two and results were exactly the same. Guess thats why its called relative reading! Dave K4JRB ------------------------------ Message-Id: <200705172307.l4HN7UUg010737@mail28.syd.optusnet.com.au> Content-Type: text/plain Content-Disposition: inline Content-Transfer-Encoding: binary Mime-Version: 1.0 From: brianclarke01@optusnet.com.au To: Old Tube Radios Cc: Old Tube Radios Date: Fri, 18 May 2007 09:07:30 +1000 Subject: Re: Heath SWR Bridges Hi John, The Heath Cantenna is an extremely poor piece of design work. It may just about be correct at DC. The problem is in the use of a parallel-sided tube to form the outer conductor around the load resistor. At one end, the impedance should be 50 Ohm but at the other it should be 0 Ohm. However, what does Heath do? It has the ratio of diameters the same at the 50 Ohm and 0 Ohm ends. Extremely poor design! How do you get 'good' readings with it? By using a meter whose errors are the inverse of the cantenna's. But what about measuring everything else? Have a nice day and turn out the light as you leave. For a proper design, have a look at the innards of any Bird Termaline. 73 de Brian, VK2GCE. ------------------------------ Message-Id: <200705172309.l4HN9YBO006080@mail03.syd.optusnet.com.au> Content-Type: text/plain Content-Disposition: inline Content-Transfer-Encoding: binary Mime-Version: 1.0 From: brianclarke01@optusnet.com.au To: Old Tube Radios Cc: Old Tube Radios , Old Tube Radios Date: Fri, 18 May 2007 09:09:34 +1000 Subject: Re: Heath SWR Bridges Hi Bob, I'ld like to see an Ohmmeter that can measure impedance at any frequency greater than 0 Hz. 73 de Brian, Vk2GCE. ------------------------------ Date: Thu, 17 May 2007 18:56:44 -0500 (CDT) From: Bob Roehrig To: Old Tube Radios Cc: Old Tube Radios Subject: Re: Heath SWR Bridges Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed On Fri, 18 May 2007 brianclarke01@optusnet.com.au wrote: > Hi Bob, > > I'ld like to see an Ohmmeter that can measure impedance at any frequency greater than 0 Hz. If the load is pure resistive, then the impedance should equal the DC resistance. What I should have said, perhaps, is that if the DCR equals 50 to 52 ohms, then you have a chance of having a pretty good match. My Cantenna reads 44 ohms DC. Bob Roehrig Aurora University Telecom dept. broehrig@aurora.edu K9EUI W9ZGP WD2XSH/19 630-844-4898 fax 630-844-4222 "Nostalgia is a thing of the past" ------------------------------ Message-Id: <200705180337.l4I3b4oB022821@mail19.syd.optusnet.com.au> Content-Type: text/plain Content-Disposition: inline Content-Transfer-Encoding: binary Mime-Version: 1.0 From: brianclarke01@optusnet.com.au To: Old Tube Radios Cc: brianclarke01@optusnet.com.au, Old Tube Radios Date: Fri, 18 May 2007 13:37:04 +1000 Subject: Re: Heath SWR Bridges Sorry Bob, I disagree. As the reactance changes with frequency, then the DCR sets the lowest magnitude of impedance - only. It gives you absolutely NO idea of the impedance at any frequency other than 0 Hz. 73 de Brian, VK2GCE > Bob Roehrig wrote: > > On Fri, 18 May 2007 brianclarke01@optusnet.com.au wrote: > > > Hi Bob, > > > > I'ld like to see an Ohmmeter that can measure impedance at any > frequency greater than 0 Hz. > > If the load is pure resistive, then the impedance should equal the DC > resistance. What I should have said, perhaps, is that if the DCR equals > 50 > to 52 ohms, then you have a chance of having a pretty good match. My > Cantenna reads 44 ohms DC. > > > > Bob Roehrig > Aurora University Telecom dept. > broehrig@aurora.edu > K9EUI W9ZGP WD2XSH/19 > 630-844-4898 fax 630-844-4222 > "Nostalgia is a thing of the past" ------------------------------ Message-ID: <002101c798fe$58ee8410$db9d480c@KB6NAX> From: "Arden Allen" To: Old Tube Radios Subject: Re: Heath SWR Bridges Date: Thu, 17 May 2007 20:39:54 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit > The Heath Cantenna is an extremely poor piece of design work. It may just about be correct at DC. The problem is in the use of a parallel-sided tube to form the outer conductor around the load resistor. At one end, the impedance should be 50 Ohm but at the other it should be 0 Ohm. However, what does Heath do? It has the ratio of diameters the same at the 50 Ohm and 0 Ohm ends. ....... The Cantenna is just good enough for government work IF you are lucky enough to have one with a resistor within 5% of 50 ohms. I guess it takes a conehead to design a proper dummy load ;-) The AM2 is not such a grand design either. In order to get a 1:1 reading with a Bird dummy load you have to trim the resistors (do it both ways!). BTW, "50 ohms" isn't such a rational value for a standard impedance. Just check the characteristic impedance specs for RG-58A and RG-58C. If you consider what the power loss is with an SWR reading of 1.2, assuming a perfect SWR bridge, it's not worth forgetting to go to bed about! Who's on first base? Arden Allen KB6NAX ------------------------------ Message-ID: <003701c798ff$3c3ea790$db9d480c@KB6NAX> From: "Arden Allen" To: Old Tube Radios Subject: Re: Heath SWR Bridges Date: Thu, 17 May 2007 20:47:13 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit Bob said: > If the load is pure resistive, then the impedance should equal the DC resistance. ....... Brian said: > I disagree. As the reactance changes with frequency, then the DCR sets the lowest magnitude of impedance.... A difference of no distinction :-) Arden Allen KB6NAX ------------------------------ Message-Id: <200705180754.l4I7s1Bm016144@mail34.syd.optusnet.com.au> Content-Type: text/plain Content-Disposition: inline Content-Transfer-Encoding: binary Mime-Version: 1.0 From: brianclarke01@optusnet.com.au To: Old Tube Radios Cc: Old Tube Radios , brianclarke01@optusnet.com.au Date: Fri, 18 May 2007 17:54:01 +1000 Subject: Re: Heath SWR Bridges The 50 Ohm is not as important as having 0 reactance. 73 de Brian, Vk2GCE > Arden Allen wrote: > > The Cantenna is just good enough for government work IF you are lucky > enough > to have one with a resistor within 5% of 50 ohms. I guess it takes a > conehead to design a proper dummy load ;-) > > The AM2 is not such a grand design either. In order to get a 1:1 > reading with a Bird dummy load you have to trim the resistors (do it > both > ways!). > > BTW, "50 ohms" isn't such a rational value for a standard impedance. > Just > check the characteristic impedance specs for RG-58A and RG-58C. > > If you consider what the power loss is with an SWR reading of 1.2, > assuming > a perfect SWR bridge, it's not worth forgetting to go to bed about! > > Who's on first base? > > Arden Allen > KB6NAX ------------------------------ From: wb3fau@att.net To: Old Tube Radios Cc: "Arden Allen" Subject: Re: Heath SWR Bridges Date: Sat, 19 May 2007 15:49:04 +0000 Message-Id: <051920071549.21765.464F1C6F0002C0900000550521602807419A0E00CC0D99@att.net> Keep at them Arden, lot of hard heads out there- sorry no offense meant- please understand guys- do not make a mountain out of a hole hill. If you don't want to listen to Arden-[who is right]- maybe you will listen to a manufacturer? RL Drake said a 2 to 1 SWR is quite acceptable. Now get rid of that cheap Radio Shack RG-59 and solve your problems.Russ. ------------------------------ Date: Sat, 19 May 2007 13:04:35 -0400 (EDT) From: Jerry Proc Subject: Now That's A Transmitter - Featuring the RCA TE-147 To: Old Tube Radios MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Message-ID: <534173.56480.qm@web90602.mail.mud.yahoo.com> Hello Everyone, The RCN transmitting site at Newport Corner, N.S. has been on the air continuously since May 1943. Set up under a veil of secrecy during the height of the North Atlantic U-boat threat, this backwoods village became the home of an invaluable weapon during the Battle of the Atlantic. Despite a price tag of more than $6 million, an exorbitant expense in those days, it was estimated that the facility paid for itself in three months in the amount of Allied shipping that was saved on the North Atlantic. Its signal could be heard and read from Murmansk to the Falklands and half way around the world. Its technology was considered state-of-the-art at the time capable of emitting up to 80,000 watts of power from each of its 20 transmitters and associated antenna. In 1944, more than one million code groups were transmitted from the site each month. There must have been nearly a thousand ships copying the signals from this station at any given time during the war. The three towers of its main transmitter were 560 feet high and two other towers were 320 feet high. The electrical requirements were staggering. There were oil-immersed switches that stood eighteen feet high. The main aerial had insulators, nine feet long and eighteen inches in diameter, each tested to withstand a strain of 90,000 pounds and 350,000 volts. One of the transmitters installed at Newport Corner was the low frequency RCA type TE-147. It is featured in this newly developed web document : http://jproc.ca/rrp/te147.html -- Regards, Jerry Proc E-mail: jerry7proc@yahoo.com Ask a question on any topic and get answers from real people. Go to Yahoo! Answers and share what you know at http://ca.answers.yahoo.com ------------------------------ Message-ID: <00c501c79a6c$f49501e0$0202a8c0@Belkin> From: "Brian A Clarke" To: Old Tube Radios Cc: "Arden Allen" Subject: Re: Heath SWR Bridges Date: Sun, 20 May 2007 09:25:14 +1000 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit And the authority for your pontification is now dead and was talking about tube radios, probably. Since when did R L Drake build quality dummy loads? Let's get the facts out here, now: the Heath Cantenna is a shorted, very short transmission line. Hence, it is inductive with an impedance of approx Zo tan l, where l is the length of the TL in electrical degrees. When that piece of engineering marvel approaches a 1/4-wave the input impedance is approx infinite. So much for wonderful engineering design. 73 de Brian, VK2GCE ----- Original Message ----- From: To: "Old Tube Radios" Cc: "Arden Allen" Sent: Sunday, May 20, 2007 1:49 AM Subject: Re: Heath SWR Bridges > Keep at them Arden, lot of hard heads out there- sorry no offense meant- please understand guys- do not make a mountain out of a hole hill. If you don't want to listen to Arden-[who is right]- maybe you will listen to a manufacturer? RL Drake said a 2 to 1 > SWR is quite acceptable. Now get rid of that cheap Radio Shack RG-59 and solve your problems.Russ. > ------------------------------ End of BOATANCHORS Digest 4052 ******************************