At 09:01 PM 1/11/2021, paul swed wrote:
Can you see what the xtal unit actually is.
Trimble "73090".
I suspect there is not a hole to a trimmer cap. But potentially if you can
I peeled the sticker from the top--no holes hidden there or on the four sides.
open it you could get to a cap
Newell
Thois is a different Paul.
Can you see what the xtal unit actually is.
I suspect there is not a hole to a trimmer cap. But potentially if you can
open it you could get to a cap or at least see the xtal and what caps are
around it.
Other more difficult approach is to insert a purposeful
On 1/11/21 5:36 PM, Nigel gm8pzr via time-nuts wrote:
A few years ago SA45s CSAC modules were all the rage, and I was more than happy
to acquire a few
as fallout from a UK MOD project.
It wasn't too long after though that reports were suggesting earlier failures
than expected, but I can't for
A few years ago SA45s CSAC modules were all the rage, and I was more than happy
to acquire a few
as fallout from a UK MOD project.
It wasn't too long after though that reports were suggesting earlier failures
than expected, but I can't for the life of me remember why.
Something underwater does
TL, DR: Trimble 73090 5V OCXO won't tune to 10 MHz (9.999 989 MHz at
0 VDC EFC, 9.999 997 MHz at 4.88 VDC EFC). Worth fixing? Maybe an
internal mechanical trim?
I've got one of those China special GPSDOs (thanks again, Paul!)
built around a surplus Trimble UCCM 57964 (or 57963?) board. PPS
Noticed Bluegirls changing her listing based on Nigel's false information.
Hm Really?
Please help me understand what false information I'm supposed to have provided?
I've explained to the seller that the supply voltage should be quoted as a
nominal 3.3V, with a maximum of 3.6V,
Am Sonntag, 10. Januar 2021, 23:07:02 CET schrieb Ben Hall:
> pi@spy-pi:~ $ ntpq -p
> remote refid st t when poll reach delay offset jitter
>==
>*192.168.4.66.PPS.1 u 94 1024 377
Hi folks,
I recently gambled on a 5061A on the auction site. I got veery lucky
and the unit arrived undamaged and with a good FOM functional beam tube. It
has a FTS7105 tube in it. It was scuzzy inside and took a while to pump
down, but the ion pump current now goes to zero. It locks up and
Are you heating the underside of the board with the hot air or the module
side? I was thinking that I'd try heating the underside of the board with
high temp hot air and then try to gently pry the module off. This probably
only requires three hands, so I should be good!
Philip
On Mon, Jan 11,
Do they have a ground pad on the underneath of them which solders to the
board?
If not then I'd suggest methodically working your way round them with
solder wick, removing as much solder as you can before slipping the tip of
a fine blade under a corner to apply the slightest leverage, you then
On Montag, 11. Januar 2021 15:53:30 CET paul swed wrote:
> With respect to the cut boards they are about 5 layers and some of the
> layers are shorted by the cut. Perhaps sanding them down would allow the
> boards to be used directly. My luck at popping the module off the board has
> not been very
Hi
Pulling those modules off a multi-layer board is an art. Some seem to be able
to do it, others not so much. Applying a *lot* of heat (like with a torch !!!)
seems
to be one way to do it. Since the module is soldered internally, it is tricky.
That’s
why the “assemblies” at roughly the same
In the past removed more than 10 5T's with no problems using a Propane Torch,
tapping the board and the devices did slide off. No problem.
Noticed Bluegirls changing her listing based on Nigel's false information. For
the record pin 18 of the LEA devices is a very nice feature
With respect to the cut boards they are about 5 layers and some of the
layers are shorted by the cut. Perhaps sanding them down would allow the
boards to be used directly. My luck at popping the module off the board has
not been very successful so far.
Regards
Paul
On Sun, Jan 10, 2021 at 10:03
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