[time-nuts] Thunderbolt "osc age alarm", where to get replacement oscillator?

Bob Camp kb8tq at n1k.org
Fri Nov 13 18:00:48 EST 2015


First thing to check is that it really *is* at limit. There apparently are a few odd things 
that can trigger the alarm. 

The OCXO’s out of the TBolt are sold on the auction sites from time to time. They 
seem to go for < $40 delivered. The footprint on the OCXO is pretty standard. You
can tune the parameters on the TBolt. There are a lot of other choices. About the only 
real limit is the 10 MHz frequency. 


> On Nov 13, 2015, at 2:53 PM, Pete Stephenson <pete at heypete.com> wrote:
> Hi all,
> Lady Heather just reported that my Thunderbolt's "osc age alarm" just activated.
> The manual tells me this means that the oscillator control voltage is
> at a rail and that the oscillator should be replaced. It says this
> shouldn't be needed during the first 12 years of service, but mine is
> ~17 years old, so its time may have come.
> Where can I find a suitable replacement oscillator? Is there a
> recommended part number? If the original part is no longer available,
> what is a good substitute?
> Cheers!
> -Pete
> -- 
> Pete Stephenson
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