[time-nuts] Any Isotemp OCXO107-10 Info?

Ed Palmer ed_palmer at sasktel.net
Wed Mar 12 22:44:39 EDT 2014

It's hard to see in the picture, but my oscillator is labelled:

Model  OCXO107-10
Freq   5.000 MHz
S/N    6396-40

Notice the same '0410-2540' line.  So you're probably right.  I wouldn't 
be surprised to find that Lucent had multiple sources for the oscillator 
and their part number for the oscillator was 0410-2540.

By the way, mine is working.  Frequency looks good - still moving, of 
course.  Tuning range is good.  I've got something like 200 Hz range on 
the EFC.  Current drain is good at about 70 ma.  I found a broken 
ferrite wirewound inductor on the oscillator board.  I have no idea what 
the value is so I just had to throw in something to get it to work.  My 
selection criteria was entirely scientific - magnetic core, lots of 
turns, and present in my junkbox!  That may explain why the output level 
is only -5 dBm.  I'll ovbiously have to revisit that.


On 3/12/2014 5:52 PM, Arthur Dent wrote:
> The photo looks like one of the 2 units I have but the info on
> one if my oscillators says:
> CTS Knights
> 970-2074-0
>     5 Mhz
> 0410-2540
>      8947
> I'm pretty sure the last numbers are the
> date code. If more than one company made these units they
> could have been in some piece of equipment made under military
> contact where they required a second source and/or spares.
> -Arthur

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