[time-nuts] FE-30 OCXO

Bob Camp lists at cq.nu
Sat Dec 5 03:31:13 UTC 2009


Hi

A little more background on FEI. 

For quite a while they were a major supplier to the high end of the military and space end of the oscillator business. A lot of their work was on classified projects. They branched out into the atomic clock business and also into the sub system business. 

Nothing they did was ever going to sell on the cheap. Eventually this got them in hot water with the US government. The settlement of the case effectively barred them from competing on DOD projects. As a result they turned more to the telecom and commercial end of the business. 

The case design you describe would have been very typical for a double oven back in the 1980's. The Vectron CO-246 series is one example of a similar part.  Your part, or at least it's design likely dates to that era.

Bob

On Dec 4, 2009, at 10:15 PM, Rex wrote:

> Joseph Gray wrote:
>> I find it curious that I don't find any info or
>> history on this type of OCXO, being it is made by FEI. You'd think
>> their web site would have some history.
>>  
> 
> I don't have any direct knowledge or access, but in my opinion...
> 
> I think a large portion of FEI's business has always been government or other private contracts. Your experience of finding little useful information on an FEI product matches mine. I have a 5 MHz source made for the US Navy. I had zero luck attempting to get any information or response directly from FEI. Eventually I was able to find some links that gave me a military specification number that seemed related and found declassified specification documents that gave me most of what I was looking for.
> 
> I also have an FEI rubidium source from the communications industry (cell phone site equipment). The FEI pages document these with specifications, but it seems they made many flavors with many custom options. In my case, the rubidium I obtained had many differences from the common forms that were documented online.
> 
> So unless you can, in some way, stumble on what this OCXO was used for, and you get lucky, your difficulty in finding information seems quite normal to me.
> 
> 
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