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

[DM]

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
> _______________________________________________
> time-nuts mailing list -- time-nuts at lists.febo.com
> To unsubscribe send an email to time-nuts-leave at lists.febo.com
>

_______________________________________________
time-nuts mailing list -- time-nuts at lists.febo.com
To unsubscribe send an email to time-nuts-leave at lists.febo.com
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 8143manualwithSchematics.pdf
Type: application/pdf
Size: 491490 bytes
Desc: not available
URL: <http://febo.com/pipermail/time-nuts_lists.febo.com/attachments/20230113/8da37145/attachment.pdf>