[R-1051] R-1051's FS
Keith Densmore
densmore at idirect.com
Mon Dec 2 01:30:46 EST 2002
Tony and Cecil,
Thank you both for an intelligent evaluation of the problem. You've
encouraged me to give it another go. While I have you on the subject, I
recall the nightmare of trying to re-assemble the RF deck once it has been
apart. Is there a trick to it, or do you fashion up a jig of some sort?
Thanks again,
Keith
----- Original Message -----
From: "Cecil Acuff" <chacuff at cableone.net>
To: <r-1051 at mailman.qth.net>; "Keith Densmore" <densmore at idirect.com>
Sent: Sunday, December 01, 2002 9:29 PM
Subject: Re: [R-1051] R-1051's FS
> Greetings Keith and Group,
>
> The tuning system in the 1051 uses open seeking servo circuits.
> When you select a new Mhz position on the front panel you change the
"Code"
> which consists of selectively grounding the various lines out of the Code
> Generator in a binary fashion. The turret and Mhz crystal switch spin
> seeking an open which will stop them at the correct position. A common
> problem is a ground showing up on one of the lines that creates an invalid
> code in some positions. It also creates a valid code in other positions
> that results in the turret stopping, but on the wrong band segment. There
> is a design problem on some of the early code generators where a trace on
> one of the circuit boards in the stack is too close to the metal spacers
> causing a short on that line and an invalid code. Your problem does not
> appear to be related to that....
>
> I would pull the cover from the RF deck and visually check the centering
of
> the finger contact on the Mhz strip in the fixed contacts. It should well
> into the finger in all positions. Yours may be stopping on the edge in
each
> position causing some bands to not work properly...in which case an
> adjustment on the bottom side as Tony has outlined should help. The more
> likely cause is gunk or trash of some sort on the position ring on the
> bottom side of the RF deck causing an intermittent false open to
> occur...satisfying the open seeking circuit but positioning the turret in
> the wrong place. Sounds like if you spin it again it sometimes arrives in
> position as it should. Cleaning with contact cleaner and deoxit should
> help. A warning though be very careful with the spring fingers. They are
> very easily damaged or bent causing more serious problems. Don't stick a
> Q-tip in there...you will snag one of them for sure!
>
> Most every RF deck I have had through the shop benefited from a
disassembly
> and cleaning. There are close to 400 contacts in the thing and usually
the
> switches driven by the 100 Kc and 10 Kc knobs are noisy and intermittent.
> Takes a couple hours to do it right!
>
> Cecil Acuff
>
> The R1051 Shop
>
> www.r1051.com
>
> ----- Original Message -----
> From: Tony Snider <trsnider at mindspring.com>
> To: Keith Densmore <densmore at idirect.com>
> Cc: <r-1051 at mailman.qth.net>
> Sent: Sunday, December 01, 2002 7:14 PM
> Subject: Re: [R-1051] R-1051's FS
>
>
> > Ok I'm up to speed now, if you look at the bottom of the turret you will
> see
> > a couple sets of finger contacts through slots, these are the ones that
> make
> > the turret stop in the correct spot, they frequently get dirty and cause
> > that problem or the thing just spins forever, some of the deoxit (best
> > contact cleaner in the world) into the slots and if you rock the 1 mc
knob
> > back and forth and keep the turret moving to work the stuff into the
whole
> > ring will usually solve the problem, also there is an adjustment for the
> > stop points, it is made by moving the finger contacts back or ahead in
the
> > track on the bottom of the turret. this adjustment will only do anything
> if
> > the unit stops ahead or behind on EVERY band, if like you say it works
on
> > some and not on others it is certainly the contacts. the selector decks
> > (code generator) on the back of the 10 and 1 mc knob are a second place
to
> > look and hit with the deoxit!!
> > Tony
> > ----- Original Message -----
> > From: "Keith Densmore" <densmore at idirect.com>
> > To: "Tony Snider" <trsnider at mindspring.com>
> > Sent: Sunday, December 01, 2002 1:31 PM
> > Subject: Re: [R-1051] R-1051's FS
> >
> >
> > > Hi Tony,
> > > It's been awhile since I fiddled with it, so my memory is probably a
bit
> > > hazy. One of the five lines either is always at ground or never at
> ground.
> > > Result is it will tune to some MCS positions but stop short on others.
I
> > > 'fixed' the problem by putting in a toggle switch which either lifts
or
> > > makes the ground, which starts the turret again and it always will go
to
> > the
> > > right band by doing this. Hope this helps.
> > > Thanks,
> > > Keith
> > >
> > >
> > > ----- Original Message -----
> > > From: "Tony Snider" <trsnider at mindspring.com>
> > > To: "Keith Densmore" <densmore at idirect.com>
> > > Sent: Sunday, December 01, 2002 12:12 PM
> > > Subject: Re: [R-1051] R-1051's FS
> > >
> > >
> > > > Keith,
> > > > wont cost you anything for me to look at it, I assume when you say
> > switch
> > > > you mean one of the turret slices is not making contact, so it would
> be
> > > dead
> > > > on 1 band?? is that correct??
> > > > ----- Original Message -----
> > > > From: "Keith Densmore" <densmore at idirect.com>
> > > > To: <trsnider at mindspring.com>
> > > > Cc: <r-1051-request at mailman.qth.net>
> > > > Sent: Sunday, December 01, 2002 11:27 AM
> > > > Subject: Re: [R-1051] R-1051's FS
> > > >
> > > >
> > > > > Hi Tony,
> > > > >
> > > > > I have been following the R-1051 thread with great interest. It' s
> > nice
> > > to
> > > > > know someone out there can service these beasts. I have an R-1051B
> and
> > > > have
> > > > > managed to keep it running except for a problem on the main turret
> > > tuning
> > > > > drum. One of the switches does not make contact during frequency
> > change.
> > > I
> > > > > have taken one of these things apart before but am at a loss on
how
> to
> > > get
> > > > > it back together. Bottom line, if I sent you it, what would it
cost
> to
> > > > > repair, or do an exchange?
> > > > >
> > > > > Thanks,
> > > > > Keith, ve3gem
> > > > >
> > > > >
> > > > >
> > > > > ----- Original Message -----
> > > > > From: "Tony Snider" <trsnider at mindspring.com>
> > > > > To: <r-1051 at mailman.qth.net>
> > > > > Sent: Saturday, November 30, 2002 6:06 PM
> > > > > Subject: Re: [R-1051] R-1051's FS
> > > > >
> > > > >
> > > > > > James,
> > > > > > give me a call sometime, I can most likely answer any questions
> you
> > > > might
> > > > > > have and would be happy to help anyway I can, I have repaired
and
> > > > > overhauled
> > > > > > a few hundred various model 1051s for the navy and have figured
> out
> > > most
> > > > > > problems they come up with
> > > > > > Tony
> > > > > > 757-270-8424
> > > > > > ----- Original Message -----
> > > > > > From: "James A. (Andy) Moorer" <jamminpower at earthlink.net>
> > > > > > To: <r-1051 at mailman.qth.net>
> > > > > > Sent: Saturday, November 30, 2002 5:04 PM
> > > > > > Subject: Re: [R-1051] R-1051's FS
> > > > > >
> > > > > >
> > > > > > > Hello. I understand that you folks are professionals, but as
an
> > > > amateur
> > > > > > > trying to figure out the R-1051, I find that the manual
doesn't
> > give
> > > a
> > > > > lot
> > > > > > > of help on maintenance, overhaul, alignment (there must be
some,
> > > > musn't
> > > > > > > there?) and other details of keeping your R-1051 happy. It
gives
> > > some
> > > > > > help,
> > > > > > > but not nearly as much as the other boatanchor manuals give.
Do
> > you
> > > > > folks
> > > > > > > have any additional documentation that you could post? Anyone
> > > consider
> > > > > > > writing some "how-to" articles for us?
> > > > > > >
> > > > > > > James A. (Andy) Moorer
> > > > > > > www.jamminpower.com
> > > > > > >
> > > > > > >
> > > > > > > ----- Original Message -----
> > > > > > > From: "Tony Snider" <trsnider at mindspring.com>
> > > > > > > To: <r-1051 at mailman.qth.net>
> > > > > > > Sent: Saturday, November 30, 2002 1:53 PM
> > > > > > > Subject: Re: [R-1051] R-1051's FS
> > > > > > >
> > > > > > >
> > > > > > > > Cecil,
> > > > > > > > we ought to work together on some of this stuff I have about
> 100
> > > > > radios
> > > > > > > here
> > > > > > > > of various types and about 1000 modules, as soon as I get
the
> > new
> > > > shop
> > > > > > > built
> > > > > > > > 5000Sq ft We are going to start advertising to do radio and
> > module
> > > > > > > overhaul
> > > > > > > > for the govt, I did a bunch for the navy last year as a
> > > subcontract.
> > > > > and
> > > > > > > > some Collins synth. modules for an overseas gov a month ago,
> > will
> > > be
> > > > > > > putting
> > > > > > > > together a site with all the radios we can support and a
list
> of
> > > > their
> > > > > > > major
> > > > > > > > boards, modules, etc. we are set up to overhaul most any
navy
> or
> > > air
> > > > > > force
> > > > > > > > transmitters as well.
> > > > > > > > tony
> > > > > > > > ----- Original Message -----
> > > > > > > > From: "Cecil Acuff" <chacuff at cableone.net>
> > > > > > > > To: <r-1051 at mailman.qth.net>
> > > > > > > > Sent: Saturday, November 30, 2002 1:13 PM
> > > > > > > > Subject: Re: [R-1051] R-1051's FS
> > > > > > > >
> > > > > > > >
> > > > > > > > > Happy Holidays Tony!
> > > > > > > > >
> > > > > > > > > Cecil Acuff
> > > > > > > > >
> > > > > > > > > www.r1051.com
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > ----- Original Message -----
> > > > > > > > > From: Tony Snider <trsnider at mindspring.com>
> > > > > > > > > To: <r-1051 at mailman.qth.net>
> > > > > > > > > Cc: <Radiograveyard at aol.com>
> > > > > > > > > Sent: Saturday, November 30, 2002 3:07 AM
> > > > > > > > > Subject: [R-1051] R-1051's FS
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > > Hello,
> > > > > > > > > > Need you guys to be part of the new garage building
> > project!!
> > > > have
> > > > > > for
> > > > > > > > > sale
> > > > > > > > > > R-1051 straight, R-1051B, R-1051D, R-1051G and R-1051H
all
> > > sets
> > > > > > fully
> > > > > > > > > tested
> > > > > > > > > > and guaranteed. all have small scratches and dings here
> and
> > > > there
> > > > > > from
> > > > > > > > > being
> > > > > > > > > > heavy and handled (nothing major or out of the ordinary)
> set
> > > > > covers
> > > > > > > 2-30
> > > > > > > > > > mhz, decade tuning, very sensitive, has modes LSB, USB,
> CW,
> > > AM,
> > > > > FSK,
> > > > > > > > ISB,
> > > > > > > > > > all solid state except 2 tube front end, rackmount,
115vac
> > > > input,
> > > > > > all
> > > > > > > > sets
> > > > > > > > > > include desk mount, copy of OPERATORS instructions (not
> > full
> > > > > > manual)
> > > > > > > > > power
> > > > > > > > > > cord extra heavy duty shipping box and 2
> > > > > > > > > > audio connectors.
> > > > > > > > > >
> > > > > > > > > > FULL REFUND OF PURCHASE PRICE IF YOU ARE NOT HAPPY
> > > > > > > > > >
> > > > > > > > > > R-1051 straight 450.00 very good condition except
> > both
> > > > > panel
> > > > > > > > lamps
> > > > > > > > > > out
> > > > > > > > > >
> > > > > > > > > > R-1051B 550.00 very good condition
except
> > > both
> > > > > > panel
> > > > > > > > > lamps
> > > > > > > > > > out, includes FULL
> > > > > > > > > ORIGINAL
> > > > > > > > > > MANUAL
> > > > > > > > > >
> > > > > > > > > > R-1051D 599.00 very good condition
> > > > > > > > > >
> > > > > > > > > > R-1051G 699.00 very good condition,
has
> > > > > > synthesized
> > > > > > > > > > six-pack, some decent touch
> > > > > > > > > > up paint on front panel
> > > > > > > > > >
> > > > > > > > > > R-1051H 899.00 excellent condition,
> > > > synthesized
> > > > > > > > > six-pack,
> > > > > > > > > > last model of R-1051
> > > > > > > > > > made
> > > > > > > > > >
> > > > > > > > > > ALWAYS LOOKING FOR 70'S OR LATER MIL RADIO,
SURVEILLANCE,
> > > RADAR,
> > > > > > > > > > COUNTERMEASURES, MANUALS IF YOU HAVE SOME TO TRADE!!
> > > > > > > > > > Thanks
> > > > > > > > > > Tony
> > > > > > > > > > 757-270-8424
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > _______________________________________________
> > > > > > > > > > R-1051 mailing list
> > > > > > > > > > R-1051 at mailman.qth.net
> > > > > > > > > > http://mailman.qth.net/mailman/listinfo/r-1051
> > > > > > > > >
> > > > > > > > > _______________________________________________
> > > > > > > > > R-1051 mailing list
> > > > > > > > > R-1051 at mailman.qth.net
> > > > > > > > > http://mailman.qth.net/mailman/listinfo/r-1051
> > > > > > > >
> > > > > > > > _______________________________________________
> > > > > > > > R-1051 mailing list
> > > > > > > > R-1051 at mailman.qth.net
> > > > > > > > http://mailman.qth.net/mailman/listinfo/r-1051
> > > > > > >
> > > > > > >
> > > > > > > _______________________________________________
> > > > > > > R-1051 mailing list
> > > > > > > R-1051 at mailman.qth.net
> > > > > > > http://mailman.qth.net/mailman/listinfo/r-1051
> > > > > > >
> > > > > >
> > > > > > _______________________________________________
> > > > > > R-1051 mailing list
> > > > > > R-1051 at mailman.qth.net
> > > > > > http://mailman.qth.net/mailman/listinfo/r-1051
> > > > > >
> > > > >
> > > >
> > > >
> > >
> >
> > _______________________________________________
> > R-1051 mailing list
> > R-1051 at mailman.qth.net
> > http://mailman.qth.net/mailman/listinfo/r-1051
>
>
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