Hi
I think you will find that tearing open a TBolt OCXO does not reveal a
mechanical trimmer
anywhere to be seen. That’s true at least if it was made past about 1997 …
It’s unusual to see them actually age out. Most that I have seen still have >
90% of their trim
range left. A much more common
> 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
Hi Pete,
I have plenty of TBolt's from the group buy years ago. I'm sure there's a spare
oscillator in there.
Hi,
Sadly my tbolt is sick as well. There is some fault that causes the processor
to constantly reset. I already had the outer screws undone, so I popped open
the case to look for the trimmer you need. There is indeed a solder blob on one
side of the oscillator, under which I would presume is t
Pete,
I would doubt anything is directly available.
But if there is hope for some hack its certainly here from my experience.
Hack may be the actual reality. Got a saw?
Good luck because one day sooner then later I suspect I will ask the same
question.
Regards
Paul
WB8TSL
On Fri, Nov 13, 2015 at 2
Typically all that means is the crystal needs to have its
trimmer capacitor adjusted back into range. I have no direct knowledge
of the TBolt's oscillator, but it might be as simple as removing
a screw, and adjusting the trimmer... Or, in some cases you have
to remove a solder blob from the metal
Hi
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
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
~
