The actual offset value in this application is somewhat irrelevant.
Temperature stability of the offset voltage and bias current is. The 10811
met it's specs with the LM208 so there is no need to get a substantially
better part even though as you pointed out it is easy. My point was not to
use
One more LMx08 equivalent: the most obvious of all, the LT1008. I
didn't think about it earlier because I assumed it would have been
discontinued long ago.
The LT1008 was designed specifically to upgrade LMx08 sockets, so it
uses Pin 8 for overcompensation -- just like the LMx08. It is one
Hi
The TBolt does code phase to lock up the OCXO. Effectively its best guess error
is zero once the control loop
closes. That also means the average error is also zero. Since it’s yanking the
OCXO *and* guessing at the error,
separating those two numbers can get a bit tangled up. One of the
Rick,
Thanks for this information. Actually the technology of C18 is not specified in
the manual.
Why should it necessarily be « foil » type and metallized?
Is « foil » type same as « film » type?
Of course the « mass » needs to be there (=> 3D printing services)
Best
Gilles.
> Le 15 sept. 2019
On 9/14/19 7:43 PM, Richard (Rick) Karlquist wrote:
In the 40 years since the 10811 was designed, AFAIK, there
as been zero (0) progress with respect to the capacitance
per cubic centimeter of foil capacitors.
I think that's because you're up against physics - foils can only be so
thin
Assuming that the T'bird works as you stated, you might still want to know
where in that
sawtooth the supposedly "fixed" error falls. Maybe this is unimportant if
all you want is a
stable reference frequency source, or very important if you actually want
to know what
time it is. However, the
Precisely.
On Sun, Sep 15, 2019 at 6:03 PM Alberto di Bene wrote:
> On 2019-09-15 14:12, Forrest Christian (List Account) wrote:
>
> > Most GPS receivers with 1PPS outputs are only able to align the 1PPS to
> the
> > nearest edge of some internal clock. In addition, in most GPS
> receivers,
>
Let me see if I can give this a go. Some of this will likely be
oversimplified and not exactly accurate. Consider this a simplified 101
level class taught by an assistant and not the professor.
Most GPS receivers with 1PPS outputs are only able to align the 1PPS to the
nearest edge of some
It has been 17 years since Steve Smith, G8LMX (Nottingham, UK) has taken
time-nuts on his ‘Fantastic Voyage’ inside the dual oven of the HP 10811.
https://www.realhamradio.com/GPS-oven-journey.htm
I believe the challenge will be sourcing Quality Components properly
characterized to operate at
> On Sep 14, 2019, at 5:20 PM, Mark Sims wrote:
> Lady Heather should do the job. It supports using a GPS device as the main
> input device and a TICC/counter as an auxiliary input device (/ei= command
> line option). Writing a .xml format log file will have all the data. On a
> TICC you
The 10811 oven loop is only barely stable. It's stability
is limited by the amount of capacitance that you can
get in a cap of the size that will physically fit. BTW, this
cap must be of the foil type, not the metallized type.
If you are building a knock off of the 10811 and you can
fit in more
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