[R-390] Got the SP-600

[Barry Hauser]

Hi Bob:

Congratulations!

Just don't spin that dial too much in the first week -- you might get dizzy.
Do not put any oil on anything -- mostly.  The tuning mechanism is basically
a friction/rim drive and if lube migrates to it, slippage occurs.  You can
put a tiny droplet on each shaft bearing.

As for S/N's -- while the SP-600 is not modular, so not as subject to depot
dawginess as the '390A, the internal tag is usually on the turret cover and
it's possible they got swapped at the depot.  Some of those tags were never
stamped and say "J-" or "JX-" -- nothing.  Don't know about those.

I guess Northern Radio got a batch of new (or used?) SP-600's and refurbed
and modded them.

Enjoy!

Barry





----- Original Message ----- 
From: "Rbethman" <rbethman at comcast.net>
To: <R-390 at mailman.qth.net>; <kgordon at moscow.com>
Sent: Sunday, July 11, 2004 11:48 PM
Subject: [R-390] Got the SP-600


> Well Gang,
>
>     I made the swap.
>
>     I brought it home and HAD to get it on an antenna!  I have to say
> that it IS a different animal.  I have NO idea how to even TRY to do a
> comparison to an R-390A.
>
>     Yes, they are the same BUT they are different.
>
>     This one needs a "little" work, but not much.  One band works when
> it feels like it  The issues appear to be tube pins to clean, and
> switches to clean.  That's a WHOLE lot less than a restoration.
>
>     My first BIG like - much better audio!  My first dislike - trying to
> figure WHERE to connect coax, when there are about FIVE SO-239s.
>
>     Of COURSE the one for the antenna is the UNMARKED one.
>
>     The front panel has engraved "Hammarlund SP-600.  The tag on the
> VFO/Bandswitch enclosure(?) says type J11.  Then there is ALSO a
> Northern Radio tag on the front that says Model 159.
>
>     The internal tag has a different S/N than the Northern Radio tag..
> the internal has a 17XXX s/n, The external has an S/N of 740.
>
>     Confusing.
>
>     Ken please post the manual on your site so I can download it.  I
> have high speed access - about 0.7MBps.
>
>     Scratching head - Enjoying MY NEW TOY!
>
> Bob - N0DGN
>
> -- 
> <                      Bob Bethman - N0DGN
> +-------------------------------+----------------------------------+
> | N0DGN AMRadio Manassas, VA    |    REAL Tube Radio and AM        |
> +-------------------------------+----------------------------------+
> |       Manassas Radio - Home of Homemade Kielbasa & Pirogi        |
> +-------------------------------+----------------------------------+
> | Bob Bethman                \\\|///     " The absence of a danger |
> | rbethman(at)comcast.net   \\ ~ ~ //      signal does *NOT* mean  |
> |                           (/ @ @ /)      that everything is OK " |
> +-------------------------oOOo-(_)-oOOo----------------------------+
> |               <http://home.comcast.net/~rbethman>                |
> | 1 BC-610I w/BC-614I,1 T-213/GRC-26 w/BC614I 1 '51 Collins R-390A |
> | 1 '67 EAC R-390A, Heathkit DX-60, Apache, Mohawk, SX-101, HT-32A |
> +------------------------------------------------------------------+
> |           Amateur Astronomer - Celestron Nexstar 8               |
> |             12" f5 Dob coming soon!  Being built                 |
> |                  Meade ETX-60 (Got it back!)                     |
> |               38 Deg 46.8' N - 77 Deg 28.5' W                    |
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