[R-1051] R-1051's FS

Matt Parkinson mparkinson1 at socal.rr.com
Mon Dec 2 22:04:19 EST 2002 

Gregory .Thanks
For the information I have found some pins not making contact and thought
that I had it fixed but that didn't do it .
The problem with that pin was it was not making contact to the 12KC sync
signal that feed the VFO I fixed that and found also the sub power supply
board which is not a
Module had bad capacitors on it I replaced that but that didn't do it
either.
So it looks like I still have a way to go.
I beginning to think that the receiver never did work and it was left for
rework this receiver looks brand new inside and out.
Looks like it never say any action.
The receiver is really mint .

-----Original Message-----
From: r-1051-admin at mailman.qth.net [mailto:r-1051-admin at mailman.qth.net]On
Behalf Of Gregory Mengell
Sent: Monday, December 02, 2002 9:02 AM
To: r-1051 at mailman.qth.net
Subject: Re: [R-1051] R-1051's FS

Matt , I  have very limited experience with  the R-1051b .One learning
experience I benifitted from was checking the module sockets both on the
modules and "mainframe".Ocasionally the pin conacts may drop away to the
point that although at first glance they appear OK,it seems they may not
make contact.Just a thot.  Good luck Gregory Mengell
----- Original Message -----
From: "Matt Parkinson" <mparkinson1 at socal.rr.com>
To: <r-1051 at mailman.qth.net>
Sent: Saturday, November 30, 2002 10:40 PM
Subject: RE: [R-1051] R-1051's FS


> Tony I will look at the grounds also.
> All audio is contained in the audio module so a swap would have cured that
> problem also.
> I have not scoped the supply but there is a 125v line coming out of the
> power supply and if you take your meter and measure the voltage you can
see
> the voltage
> Moving up and down with the noise the receiver makes.
> If you had a schematic of this receiver I could show you where this
voltage
> goes and it goes to another module and that has been swapped.
> Oh yes the power supply is also a module and I swapped that also. .
> This so interesting I have never had a receiver stump me like this before.
> I am getting so familiar this receiver I soon will no it backwards and
> forward.
> On the working one the SSB works so nice that is one of the reasons I want
> to fix it .
> Now don't get me wrong I do have an R 1051B and I have 2 more coming with
a
> T-195 transmitter.
> They are great receivers also but much heaver than the R 1490 .
> I hope no one get upset about talking about the R 1490 but this is a
> comparison to a R-1051 .
> Like a R -390  is compared to and R-392
> One big guy and one little guy both doing the same job but only little and
> less weight.
> If you know any one with any more experience send them my way I have never
> really heard of any one with any real experience working on this receiver.
> Matt
>
>
> -----Original Message-----
> From: r-1051-admin at mailman.qth.net [mailto:r-1051-admin at mailman.qth.net]On
> Behalf Of Tony Snider
> Sent: Saturday, November 30, 2002 9:17 PM
> To: r-1051 at mailman.qth.net
> Subject: Re: [R-1051] R-1051's FS
>
> matt,
>  have you looked at the power supply rails with a scope to look for
> weirdness there?? other than that pop-pop through the speaker, is normally
> an audio amp problem, have seen this caused by a lost ground for audio
> circuit, I am not up to speed on this unit enough to really point you in a
> good direction, but I would be looking at grounds!!
> ----- Original Message -----
> From: "Matt Parkinson" <mparkinson1 at socal.rr.com>
> To: <r-1051 at mailman.qth.net>
> Sent: Saturday, November 30, 2002 11:26 PM
> Subject: RE: [R-1051] R-1051's FS
>
>
> > Yes that is true but the belts can be had by a company in NY I have 3
> spares
> > .
> > I believe that the belts cost 15.00 not to bad and really not to bad to
> > install if you have done it a few times.
> > I am completely stumped on the one I am trouble shooting at this point.
> > I have 2 of them one is working ok but not really well I think it has
some
> > type of AGC problem but is working at least.
> > The other one I just can't figure out yet might be some type of wiring
> > problem is just motor boats so to speak .
> > All modules have been swapped with the working one and they all work in
> the
> > other receiver.
> > The funny part is even with the modules swapped from bad receiver to
good
> > receiver and I do mean ever module the good receiver displays some type
of
> > AGC problem. But I not to concerned about the AGC problem right now I
just
> > want to get the none working one working.
> > The non working receiver looks brand new inside and out and yes I had to
> > replace the belt it didn't have one .
> > I have aligned the synthesizer with the belt and switch assembly to no
> avail
> > I have made sure it ohms out just like the working one but all it does
is
> go
> > pop pop pop  and that is a slow pace not a real fast pace.
> >  If by any chance you have any Idea please let me know I figure there
are
> > plenty of these receivers out there in the same boat.
> > By the way most of the modules are really easy to fix they have at least
> 100
> > 2n2222 transistors and are really easy to find and cheap to buy.
> > Matt
> >
> > -----Original Message-----
> > From: r-1051-admin at mailman.qth.net
[mailto:r-1051-admin at mailman.qth.net]On
> > Behalf Of Tony Snider
> > Sent: Saturday, November 30, 2002 8:06 PM
> > To: r-1051 at mailman.qth.net
> > Subject: Re: [R-1051] R-1051's FS
> >
> > that unit is a marine corp. gem not navy but I am familiar with them but
> not
> > like the 1051s but you are right the construction is similar I
understand
> > the band switching belts are the main drag on them
> > ----- Original Message -----
> > From: "Matt Parkinson" <mparkinson1 at socal.rr.com>
> > To: <r-1051 at mailman.qth.net>
> > Sent: Saturday, November 30, 2002 11:02 PM
> > Subject: RE: [R-1051] R-1051's FS
> >
> >
> > > Tony if that is true about all the work you have done on govt
receivers
> > and
> > > transmitters do you have any experience on the R 1490 receiver made by
> > > National that is a small version of the 1051 series receivers  If so I
> > could
> > > use some help on this gem .
> > > Matt Parkinson
> > >
> > > -----Original Message-----
> > > From: r-1051-admin at mailman.qth.net
> [mailto:r-1051-admin at mailman.qth.net]On
> > > Behalf Of Tony Snider
> > > Sent: Saturday, November 30, 2002 1:54 PM
> > > To: r-1051 at mailman.qth.net
> > > 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
> > >
> >
> > _______________________________________________
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> >
> > _______________________________________________
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>
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