[time-nuts] Re: Spectracom 8143 GPS Disciplined Osc

[Shawn]

Thanks John!
-- 
Sincerely,

Shawn Tayler

On Fri, 2023-01-13 at 14:18 -0500, DM via time-nuts wrote:
> Here's a copy of the complete manual for the 8143, including
> schematics.
> I've seen these on eBay several times, but never investigated them. 
> Looks like a pretty nice box at first glance, complete with lots of
> outputs on the rear.  Phase noise is probably not that great, since
> most of the signal path is 74HCT and 74AS TTL logic gates with some
> LC filtering at the output to cleanup.
> 
> Hope it helps,
> DaveM
> 
> ----- Original Message -----
> From: "Time-Nuts" <time-nuts at lists.febo.com>
> To: comsec at xmtservices.net, "Time-Nuts" <time-nuts at lists.febo.com>
> Cc: "JC" <johnk0gcj at gmail.com>
> Sent: Friday, January 13, 2023 9:35:31 AM
> Subject: [time-nuts] Re: Spectracom 8143 GPS Disciplined Osc
> 
> Shawn, at one time Spectracom maintained their own website and made
> op and
> tech manuals
> available for download. However around 2006-2007 they were absorbed
> by
> Orolia and about
> that time the website disappeared and with it the source of manuals.
> At
> least AFAIK.
> I do have an 8143 op manual file, which I have enclosed. Hopefully it
> will
> come through.
> 
> John K0GCJ
> 
> 
> 
> On Fri, Jan 13, 2023 at 9:05 AM Shawn via time-nuts <
> time-nuts at lists.febo.com> wrote:
> 
> > Hey Guys,
> > 
> > I may have do a cleanup and refurb on some fairly old Spectracom
> > 8143
> > Disciplined Oscillators.  Are there some good resources and/or
> > places
> > to look for proper Care and Feeding type information?
> > 
> > They are being used in a communications system to synchronize
> > Simulcast
> > Communications as well as an older TDM style voice switch.  There
> > are
> > two in an A/B backup configuration.
> > --
> > Sincerely,
> > 
> > Shawn Tayler
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> > 
> 
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