[Milsurplus] Alexanderson alternator on Xmas eve

[Mike Feher]

Interesting - I have numerous similar receivers, also made by Sylvania, but,
they are for the HF bands. I do someplace have a fair amount of
documentation on the HF units, although from what I gather they were tough
to come by. I may try listening this year for the first time. I have a 290
foot inverted vee up at 70 feet, with about 80 feet of 6 inch spaced
homemade ladder line. I figure I'll just connect the feed lines together and
then use a ground. For the receiver, I believe I am just going to use one of
my relatively modern solid state Rycom selective voltmeters. Will probably
turn off all TV and computer related equipment during the process. Good luck
to all - Mike

 
 
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
732-886-5960
 
 

-----Original Message-----
From: milsurplus-bounces at mailman.qth.net
[mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of John Kolb
Sent: Sunday, December 09, 2007 7:02 PM
To: Mike Morrow; Milsurplus
Subject: Re: [Milsurplus] Alexanderson alternator on Xmas eve

At 11:33 AM 12/9/2007, Mike Morrow wrote:
>Thirty years ago, US submarines used specialized limited-coverage 
>AN/BRR-3 sets (14 - 30 kHz) for their critical VLF communications 
>needs.  They also had one of these wider-coverage AN/WRR-3 sets, 
>even though surfaced submarines weren't required to guard 500 
>kHz.  I've never seen the AN/BRR-3 in surplus.  It would not be as 
>useful (except to copy SAQ) as the AN/WRR-3, though it would be an 
>interesting relic of the Cold War, just like those AN/WLR-6 receiver 
>modules that show up from time-to-time.  The AN/WLR-6 was a signals 
>intelligence collecting console installed on many US fast attack 
>submarines during the Cold War.

I've got a pair of the R-1449/WLR-6(V) receivers, so could use any 
info anyone has on them.
http://www.jlkolb.cts.com/site/1449.htm

One of the two has a strange problem with images from CW stations
just above 4 MHz coming through.  The input low pass or bandpass filter
is being bypassed, somehow.  Any suggestions?

John
KK6IL


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