[time-nuts] WWV or Net Clock controlled oscillator

[Adrian Godwin]

There is indeed a 60Hz out picdiv from Tom Van Baak -
http://www.leapsecond.com/pic/picdiv.htm. It's not in that list but ask Tom.

I've just used one (modified for 50Hz out) to drive a 1A H-bridge circuit
that supplies a 12V peak-peak square wave to an old LED clock, replacing
the original wall-wart.
It works very nicely, and is driven by the 10MHz output of a cheap surplus
GPSDO.


On Sun, Mar 4, 2018 at 10:21 PM, paul swed <paulswedb at gmail.com> wrote:

> Donald
> I don't know if anyone makes such a thing. But I can easily think of
> numbers of answers.
> It depends on what the Mass Rowe will allow and how comfortable you are
> with a soldering iron.
> I will guess you need to dig in and supply a better reference. I searched
> the web for mass rowe and it seems operating manuals are available but no
> schematics.
> If you can figure out how to inject a new reference things get interesting.
> It may be as simple as a tap off of the power transformer going to a
> squaring circuit.
> Easy thoughts. Oven oscillator like 6 Mhz divided down.
> Pictics a time nut makes them. Don't remember if there was a Mhz in and 60
> Hz out.
> Then you can go even more interesting with GPDSOs that are divided down to
> get the 60 Hz.
> Good luck
> Regards
> Paul
> WB8TSL
>
> On Sun, Mar 4, 2018 at 5:30 AM, D. Resor <organlists at pacbell.net> wrote:
>
> > Hello,
> >
> >
> >
> > My first post here. I found this group's user group page while
> researching
> > a
> > source for either a WWV, GPS or Network referenced oscillator.
> >
> >
> >
> > The devices/equipment which I was able to find didn't  seem to fit the
> > requirements.
> >
> >
> >
> > What I have is a Maas-Rowe DCB1 (Digital Chronobell Series 1) clock
> > controller.
> >
> > Seen here:
> > http://hammondorganservice.com/downloads/images/carillon/
> > TempleCitySDADCB1a.
> > jpg
> >
> >
> >
> > The system can be heard playing the Westminster Chimes and striking 12
> noon
> > here:
> >
> >
> >
> > https://www.youtube.com/watch?v=Ij5c6RqGhn0
> >
> >
> >
> >
> >
> > It can be programmed to play Westminster sequences and/or music
> selections
> > using Maas-Rowe real struck chromatically tuned bell rods.
> >
> >
> >
> > This unit is installed in Southern California Edison area.  The problem
> is,
> > this unit receives its clock reference from the 60Hz AC line to keep it
> in
> > sync.  Up until a few years ago this worked very well.  Now, Edison's
> 60Hz
> > line frequency is all over the place and this clock unit now gains 30
> > seconds and/or more a week which makes it difficult to keep it
> > synchronized.
> >
> >
> >
> > The 60Hz reference can be switched out by the use of dip switches,
> however
> > that setting isn't much better.
> >
> >
> >
> > I was trying to locate a cost effective clock reference which can be
> > synchronized from either WWV, request the correct time from a net server
> or
> > possibly GPS.  It then needs a clock referenced output of 60Hz.
> >
> >
> >
> > Does such a thing exist?
> >
> >
> >
> > Thank You
> >
> >
> >
> >
> >
> > Donald R. Resor Jr. T. W. & T. C. Svc. Co.
> >
> > http://hammondorganservice.com
> > Hammond USA warranty service
> > "Most people don't have a sense of humor. They think they do, but they
> > don't." --Jonathan Winters
> >
> >
> >
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