The man that invented the Congreve Clock was also responsible for the
Congreve Rocket, as in "The rockets red glare"
On 2017-03-17 4:12 PM, William H. Fite wrote:
My hundred year old Congreve clock didn't advance, either. Whatever should
I do? :)
It is accurate to about 5-10 minutes per
Not sure where you got the 80 K cps the seller mentions 80M(eter) and
the items are clearly marked 3720 KCS 3760 KCS and 3780 KCS which would
be in the 80 meter band.
Paul.
On 2016-11-26 11:15 AM, Bob Camp wrote:
Hi
Welcome to eBay …..
I don’t believe those are crystals at all. If you
Bob,
I just looked at the clock I am not using and it is 1818-2295A, it is
not convenient for me to check the other one as it is running and in a
place where I would have to disconnect it to get it out. I could dump
this ROM for you but it may take me a few days as I have other things on
On 2016-10-06 4:56 PM, Bob wrote:
I'd like to ask the HP 59309A owners on time-nuts if the following symptoms
sound familiar, and if so, what would the fix be?
o New-to-me HP 59309A clock.
o Late build, 1985 date code on many parts.
o I replaced the big 1900 uF electrolytic before plugging it
I have also used LH with a Thunderbolt 'E' and did not have any issues,
however I have not turned on the E for some time now.
Paul
On 2015-03-11 9:04 PM, James Tucker wrote:
Mark, and anyone else interested;
I have an 'E' Thunderbolt, and use LH3.10 to monitor it contiguously, and
with no
Hi Skip,
Seeing as how you have spent some time poking around inside FE-5680s
maybe you might be able to help with a problem I have with one. A while
back I purchased two 5380As that where reputed to be new they are marked
with 10MHZ OPTION 57 and would seem to match you description of the
Yes it is hard to tell, I believe that is the aim of people in the
counterfeiting business, if it was easy to tell they would not get very
far. I do however believe that FTDI has the right to protect their
intellectual property. I don't believe they are in the business of
enabling
Unfortunately the issue that FTDI is trying to combat is counterfeiters,
and I think you will find that the counterfeit devices will report the
same product and vendor id as the genuine ones. The product and vendor
ids are how the OS identifies a device and how they decide which device
driver
On 3/01/14 11:35 AM, Magnus Danielson wrote:
On 24/02/14 19:14, Paul Berger wrote:
A couple further observations, to make life easier when adjusting C245
you can unplug the top card and move it aside, the CVXO will lock
without it, but you will not have the 10MHz to monitor, but you can
monitor
A couple further observations, to make life easier when adjusting C245
you can unplug the top card and move it aside, the CVXO will lock
without it, but you will not have the 10MHz to monitor, but you can
monitor the CVXO output instead. On the 6 pin connector you will see a
1 near the outer
Yes It took me several tries to find the spot, I only had success when I
began only moving it in tiny increments I was not getting anywhere with
1/4 or 1/8 turn adjustments, and you should leave it a few minutes on
each try when mine finally did lock is started at a little over 10MHz
and then
Hi,
I have a couple that look like the one in these pictures minus the the
little frequency control board.
http://www.flickr.com/photos/14336723@N08/sets/72157632394339366/
One of mine would not lock so what I did I looked at my other 5680A
which is the type referred to in the tip about C217
Didier:
This is of interest to me however I wonder is there anything in the code
that is tied to this specific 8051 derived processor? I have a number
of variations some going all the way back to the original Intel 8751s
and wonder if one might be used in place of the processor you used. I
Hi:
My Nortel unit seems to go into holdover when LH is still reporting one
usable satellite. When doing a survey it would go into holdover below
four because I believe it is doing 3D position samples which would
require four.
On a related note I picked up some 110 pin Z-Pack connectors,
All of this talk about antenna position has got me thinking about a
better place for my antenna. I live in a rental townhouse and have no
access to the roof and even if I did bringing a cable in from outside
would be difficult, so am pretty much limited to an indoor antenna. My
current
I have that same board and I am powering it from a 30VDC unregulated
power cube from an old printer, it has been working well that way for
several months now. The specs say it will shutdown at around 18V so it
will probably be OK at 19.5, if it is a unregulated brick the actual
output may
I have a Nortel /Trimble 45000 which appears to be the bare board that
is is in the NTBW50AA and I have been running it for several months now
off of the power cube for an old printer that is rated for 30VDC, it is
just rectified and filtered, the output from the cube is not
regulated.The
Hi:
The SAGE computers, which I had the pleasure of seeing the last two
operating, had an all vacuum tube array of core that consisted of 33
planes of 64 x64 cores for about 16K worth of memory. These where all
vacuum tube computers. IBM offered a 4K all vacuum tube core storage
unit for
I am considering getting a counter with better resolution than my 5316A,
and have been looking at 5335A, they seem to be quite capable and fit my
budget, but I have some questions about options.
1. How useful is the option 020 DC voltmeter? Does it offer good
resolution?
2. Is the option 040
Hello all:
I am an electronic technician with 30+ years experience fixing
computers. In my spare time I like to play with old computers and
electronics. Recently I got bit by the precision timing bug, partially
after running across the wonderful leapsecond.com site, which lead me
here.
add is the the spikes to seem to occur less
frequently with a better antenna placement, but when they start to
cluster, they fire off one every two or three seconds, sometimes
faster.
JimT
On Wed, Feb 27, 2013 at 2:08 PM, Paul Berger phb@gmail.com wrote:
Hello all:
I am an electronic
be a picture.
Bob
On Feb 27, 2013, at 7:35 PM, Paul Berger phb@gmail.com wrote:
I did peek inside the E not long after I got it and I do remember that the OXCO
looks very different, it is much smaller than the one on my Nortel unit. If it
is the OXCO I can always source a potentially better
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