Re: [Drakelist] Two questions...TR7 related
Carl - I believe it's RG-174. It comes in either stranded (26 ga) or solid (24.5 ga) center conductor. Belden 7805R is one, unfortunately Mouser only has 500' reels for $350. Perhaps someone has the 100' put-ups for about $75. If someone knows better, or another source, speak up! The XMIT and RCV buttons are under FIXED for a reason! The control the fixed frequency function of the AUX-7. If no AUX-7, or no crystals in the AUX-7, the VCOs will unlock and settle around 18 MHz for the bands up through 20M, and around 34 MHz for the bands 15M and up. 73, Garey gypsym...@aol.com wrote: 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] 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
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
