[R-1051] R-1051 mul/ new topic

[Cecil Acuff]

Hi Al,

        I guess it's possible...here are the hurdles to be overcome as I see
it.

1)  Synthesizer would have to be modified...one of the Mhz crystals in the
motor driven Mhz osc would have to be changed to a new value...calculated to
give you the new frequency you are interested in...probably 1.000Mhz to
1.999Mhz. since each band is 1 Mhz wide.  Some math would have to be
done...shouldn't be too hard.  3 of the MHZ strips in the RF deck would have
to be retuned....most likely requiring parts replacement because of the
distance of the move....Capacitors in the RF deck are switched in to keep
things in resonance as various 100, 10 and 1 Kc segments are tuned.  Those
may have to be replaced. (a real Bear!)

All this would require that you give up one 1 Mhz segment that you currently
have to achieve the new band....The 100, 10 and 1 Kc tuning should be
accurate....but the Mhz display will be wrong...say you give up the 2 Mhz
segment...now when on the 2 Mhz setting it will actually be 1 Mhz plus what
ever 100, 10 and 1 Kc frequency you dial in.

That's the only way I know of to do what you are wanting to do....

I can look into the math...it may require 2 crystals....I'll have to look.

Most folks probably think that those frequencies below 2 Mhz are just
blocked by something that don't allow the radio to physically tune down
there...the reality is there are only 28 1 Mhz positions in the RF deck and
Mhz oscillator crystal deck...used to cover from 2.000 through 29.999 Mhz.

Probably the most likely thing would be to convert the 2 Mhz position....the
componentry is going to be the closest to the frequency desired....may just
require retuning and new crystals...

Cecil....
----- Original Message ----- 
From: "Al Parker" <anchor at ec.rr.com>
To: "R-1051 Discussion Group" <r-1051 at mailman.qth.net>
Sent: Thursday, October 07, 2004 8:32 PM
Subject: Re: [R-1051] R-1051 mul/ new topic


> Hi Cecil,
>     I've been meaning to ask you for many months  -- is it possible to
> trick an R-1051, or T-827, into working on 160 meters?  I'd think that the
> RF tuning could be tweaked or might not need to be, for 1980 - 1999, but
> is there an easy way to trick the tuning interlock?  I've looked at the
> skem a bit, but not sure.
>     Have you & Les finished that stack of 390's?  Did you get any takers
> for all the 1051 stuff?
>     And one more, what would you charge to get one of my 6-packs going?
> I've got 3 that aren't right, I think 2 do work on some posns.  I"ve only
> got one that's good, for 1 R-1051 & 2 T-827's, and have 2 spares.
> 73,
> Al, W8UT
> New Bern, NC
> BoatAnchors appreciated here
> http://www.thecompendium.net/radio/
> http://www.hammarlund.info
>
> ----- Original Message ----- 
> From: "Cecil Acuff" <chacuff at cableone.net>
> To: "R-1051 Discussion Group" <r-1051 at mailman.qth.net>; "Barry Hauser"
> <barry at hausernet.com>
> Sent: Thursday, October 07, 2004 9:14 PM
> Subject: Re: [R-1051] R-1051 multicircuit connector
>
>
> > Hey Guys,
> >
> >         My connector (chassis mount 39 pin) is made by Bendix.  It is
> marked
> > PT 07A20-39P.  The B manual does not give the mating connector
> designation.
> > The above number should get you in the ball park...
> >
> > Good luck!
> >
> > Cecil...
>
>
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