[R-1051] 100 cps Synthesizer module

Wed Mar 14 21:15:20 EDT 2012

The link worked great and the file came through. Though interesting in
looking in the parts list I hoped to see commercial part numbers at some
point. No luck.
I did look at the schematics and make the following comments.
Think these are DTL
V supply is 4 V
In the schematics the counters are embedded diode transistor logic.
The logic density per device is to high for RTL from my way back experience
with motorola chip sets.
But this won't be resolved till some useful IC info surfaces if ever.
Thank heavens so far it just keeps ticking.
Regards
Paul

On Wed, Mar 14, 2012 at 9:07 PM, Francesco Ledda <frledda at att.net> wrote:

> I looked for the link/file, but was unable to find it.
>
> Can any of you email me the link?
>
> Thank You!
>
> Francesco
>
>
>
> -----Original Message-----
> From: r-1051-bounces at mailman.qth.net [mailto:
> r-1051-bounces at mailman.qth.net]
> On Behalf Of paul swed
> Sent: Wednesday, March 14, 2012 7:42 PM
> To: R-1051 Discussion Group
> Subject: Re: [R-1051] 100 cps Synthesizer module
>
> Thanks Al
> Downloading it now but says its  45 MB file.
> Interesting on the logic. 4 V wasn't a supply V for RTL.
> But perhaps if we can find any docs somehow perhaps we all get to learn.
> Thanks
> Paul
>
> On Wed, Mar 14, 2012 at 5:06 PM, Dennis McLaughlin
> <dmclaughlin3 at neo.rr.com>wrote:
>
> > Paul,
> >
> > This is the manual that will cover the 100 cps module with the
> > Fairchild RTL IC's in it.
> > In the manual the divide by 10 IC has many different part numbers.
> > SL3144 or SL6907or CuL958.  I think it is a Fairchild RTL Counter
> > Micrologic IC.  I haven't found a datasheet for it.
> > The file is still up there.  It's a 193MB pdf file.
> > Thanks Al
> >
> > Hi everyone,
> >     I kept the subject just for those who have been following it.
> >     Thanks to Dennis McLaughlin for this item, a pdf file named
> > "R-1051-B-C-tech-supl.pdf" that is 45.5 MB. It shows the differences
> > between the 1051 and 1051B
> >     We have it up now on a webpage for anyone/everyone to download as
> > wanted.  It's a BIG file, 45mb, so unless you have a fast connection,
> > like cable, etc, it'll take forever.  But go to this page:
> > http://www.boatanchors.org/R-1051.htm
> > and click on "download".  Depending upon your browser maybe you can
> > right click and have it open in another tab or window.
> >     Maybe I can get it on an .ftp page to make it quicker for those
> > who can do .ftp, but it'll be tomorrow before I fuss with that.
> >     If anyone has similar interesting files I can put them up there
> > for all to access.  If I get a rount tuit maybe I can put some links
> > to other stuff that's found on the web.
> > 73,
> > Al, W8UT
> > New Bern, NC
> > BoatAnchors appreciated here
> > http://www.boatanchors.org
> > http://www.hammarlund.info
> >
> > Dennis McLaughlin
> >
> >
> >
> > On 03/10/2012 02:37 PM, paul swed wrote:
> > > Glad things were figured out.
> > > Can anyone share the 100 cps with me please?
> > > I do not seem to have it and I looked at all of the online manuals I
> > could
> > > fine.
> > > As to the Ge/Si discussion
> > > When these systems were designed which was well ahead by years of
> > > the service dates. Ge would have been considered the more stable
> > > transistor with a wider range of devices.
> > > (I know how things have changed. :-) ) I was in the 2nd training
> > > class in the Navy (So they said at great lakes) on these brand new
> > > radios. The several Amateur radio ops in the class
> > like
> > > myself dreamed of one of these $27,000 radios. Gosh it locked to an
> > > external reference and if it was off 1 hz it was broken. So much for
> > drift.
> > >
> > > I picked up my first one many years later 1985 region from fair
> > > radio surplus at a reasonable price, kind of. That actually went up
> > > in $ from
> > the
> > > time I purchased. Its been a work hoarse since. I saw the internet
> > > murphy stacks in LA and really thought about another 2. Just never
> > > happened. If business had dragged me out there I would have picked them
> up. No doubt.
> > > Plus parts. At the end Murphy was selling modules for $25 each just
> > > to
> > move
> > > them. Picked up some of the troubled references 3 as I recall for
> > > other uses.
> > > But I will agree those knobs suck for randomly tuning around.
> > > Regards
> > > Paul
> > > WB8TSL
> > >
> > > On Sun, Mar 4, 2012 at 3:25 PM, Mike Andrews<mikea at mikea.ath.cx>
>  wrote:
> > >
> >
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