Quick note yes the tag on the turret is J-11. I guess I invented the "X"
John ----- Original Message ---- From: K0DAN <[EMAIL PROTECTED]> To: John Flood <[EMAIL PROTECTED]>; [EMAIL PROTECTED]; [email protected] Sent: Tuesday, February 19, 2008 10:18:17 PM Subject: Re: [Boatanchors] Sp-600 JX-11 Diversity? John: I have a Northern J11 SP600 and it works great. Others have recently answered your generic. After you do basic clean up & experimentation, let me kno if I can provide any add'l info. 73 Dan K0DAN ----- Original Message ----- From: "John Flood" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>; <[email protected]> Sent: Tuesday, February 19, 2008 1:33 PM Subject: [Boatanchors] Sp-600 JX-11 Diversity? > Greetings Wise ones! > > This weekend a SP-600 JX-11 followed me home (when I was young it used to > be kittens and puppies with the odd reptile or amphibian mixed in.) along > with an assortment dust, dirt, and seed shells from barn storage but at > least the beasties didn't get into the undersides! In any event this is > a diversity version. I'm trying to I.D. who did the work but I think that > it was done by Northern Radio. I say this as the label details for the > int/ext. M.O. and int/ext AGC/BFO controls look identical to those on a > National NC-183D/R Northern diversity version that had followed me home > some years earlier. I was wondering if the factory did a diversity > version of the JX-11? If so what did the front panel look like? This > unit has no Xtal freq control and in addition to an IF output on the > chassis, there is a second IF out "in a can" with a SO-239 connector and > it is attached topside at the rear of the radio. Sound like a Northern > job to youz guyz? > > After a basic cleaning to remove crud, the variac run up produced no smoke > signals and the local BCB stations were making noise. A treatment of > carefully placed high tech bike lubricant with Teflon started the > transmission spinning again in true SP600 fashion as well as freeing the > bandswitch needle indicator that was stuck up top. A dose or two of > Deoxit on the controls helped to greatly improve things and the same on > the bandwidth controls contacts started it singing again. Granted I have > yet to touch a single piece of test gear to it but I did notice that the > AVC could use a bit more "A". It tended to overload on the BCB station a > mile or so away from me. Turning down the IF gain (that was maxed out) > helped a bit but it seemed to still act as it had more gain than was > needed. Of course, having what look to be all orrigional components, > could very well be the cause here with caps gettin old and such, but some > time ago didn't someone here comment > that the way the diversity mods were done gave this type of AVC results? > Strange enough, the dial accuracy was spot on in fact, as good as any > analog dial I have seen. More to do to it but another old girl brought > back to life is good news! > > Thats the weekend report from here your comments and flames on this beast > are welcome. > > Thanks to Mr. Mike for the lead and see ya at NEARFEST! > > John Flood > KB1FQG > _______________________________________________ > ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/[email protected]/ 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:[email protected] To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
