[time-nuts] Shera Controller - U7

[J. L. Trantham]

It is an 8 pin DIP, 24 MHz oscillator with an onboard divide output in order
to provide a dual output oscillator.  It is an ECS-300CX-240 and DigiKey
lists it as obsolete since 2009.  They say 'call'.  They also show stock on
the 12.8 MHz chip.  I wonder if that would work?

Joe

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of EWKehren at aol.com
Sent: Sunday, May 13, 2012 10:02 AM
To: time-nuts at febo.com
Subject: Re: [time-nuts] Shera Controller - U7


It is the  Xtal with 1/4
Bert Kehren
 
 
In a message dated 5/13/2012 10:52:47 A.M. Eastern Daylight Time,  
albertson.chris at gmail.com writes:

Maybe  you can remind us what U7 is.  Someplace I have a schematic but not
handy right now.

On Sun, May 13, 2012 at 5:24 AM, Kevin Staley  <kevin.staley at virgin.net> 
wrote:
> Hi All
>
> I am  building the Brooke Shera GPSDO controller board but have run 
> into  problems sourcing U7.
Chris Albertson
Redondo Beach,  California

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