[R-390] unwanted thread stuff

[Cecil Acuff]

Welcome Bill,

        No sweat on the Ballast tube post...no harm done.

Sounds like you have some good projects going....should be fun!  There is a
good group here...we enjoy a little humor now and again, that's the
personality of this group....but there will also be a lot of good
information as well..

Don't be a stranger...

Cecil....
----- Original Message ----- 
From: "William A Kulze" <wak9 at cornell.edu>
To: <R-390 at mailman.qth.net>
Sent: Monday, July 12, 2004 11:23 AM
Subject: [R-390] unwanted thread stuff


> I feel  must apologize for my first posting so far on this list. I usually
> read my mail for the group during lunch at work, and I come back after the
> 4th and find about 350 postings. I'm sorry, but I replied after only
> getting through about a hundred or so of the dreaded dead horse (do I
> really dare say ballast tube at this point?). I have since made it up to
> the ones expressing disappointment in it being somewhat overdone, so I
> appologize (most sincerely) for adding one more.
>
> I would now like to officially send greetings to everyone on the list. I
> joined last fall hoping to find a good resource of advice on this fine
> radio. I was a Ground Radio tech in the Air Force in the late 70's, but
> wound up maintaining an op station in Hawaii and never worked on a single
> radio. But in school we used the R390 to study Rx principles. Around 91 or
> so I managed to get a R390-a, Motorola 14-phila-56, s/n 924. Looked as if
> it had been dropped, one back corner of the frame being folded in pretty
> good. It worked, though, but the BFO was stuck at a pretty high freq.
> Turned out the slug had come off the shaft in the BFO can. Superglued it
> back on. Later found one of the rectifier tubes was bad, which explained
> why I only had 75v after the regulator. I've got the Army tech manual for
> a long time, and have since downloaded as much as I could find. I've got a
> URM-25F and an old Mil VTVM, and have aligned it pretty well. It's quite a
> pleasure to pick up those little flea farts out in the middle of nowhere.
>
> Also in the collection are a Hammarlund Super Pro 200 that used to work,
> but too many passives are too far out of value. Good project someday.
> National NC-173, RCA SRR-13, and a couple other old BA types. I'm not a
> ham, but my dad was, dating back to the mid 1930's. Some of my earliest
> memories are of him in his "shack", with the warm glow of all the dial
> lamps and some guy crackling out from halfway round the world.
>
> You guys take care, thanks for all the good info, and in a few days I
> should be caught up with all the current postings.
>
> Bill
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