You also might want to look in the "Sampling Oscilloscope Circuits" book
from the Tektronix "Circuit Concepts"series.
DaveD
On 4/27/2015 8:26 AM, Ivan Cousins wrote:
There is another source of information that is available.
Try looking up US patents US4755742 US4678345 US4727340.
These expla
"In another advance at the far frontiers of timekeeping by National
Institute of Standards and Technology (NIST) researchers, the latest
modification of a record-setting strontium atomic clock has achieved
precision and stability levels that now mean the clock would neither
gain nor lose one
There is another source of information that is available.
Try looking up US patents US4755742 US4678345 US4727340.
These explain about the whole system and the sampling heads.
I think the best concept is the SD-24 dual TDR head.
Ivan Cousins
___
time-
Hi
Take a look at how the 60 MHz is generated. I believe that you will find that
you have a sine wave that has come out of a logic gate via a low
pass filter or that they square it up on the board already.
My *guess* is that you could fit a little board with a divide by 6 into the Rb
and run i
That reminds me -- years ago I cleaned up, corrected, and annotated a
copy of the HP 10544 schematic. I dug it up and just posted it to
Didier's site (http://www.ko4bb.com/manuals/). When it comes off
quarantine, you can find it by searching for "HP 10544A schematic
corrected and annotated".
Dear time-nuts,
Thank you to everyone that replied to my question.
Very interesting stuff and it's great to have the insight of former HP
staff involved with these products.
Kindest regards,
Nick
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time-nuts mailing list -- time-nuts@febo.com
To uns
Bob:
The output of the 60 and 20 MHz are sine waves. The 60MHz is very clean whereas
the 20Mhz is not. The ebay link has picture of the outputs and they mirror my
results. Thanks for the tip on the LT1763, probably better to use a modified
schematic of the one I posted and modify the circuit as
Thanks all for your info about these modules.
Daniel
On 26/04/2015 01:26, Bill Byrom wrote:
I still work for Tektronix, but not in Service or the sampling scope
product line. I'm a Tektronix field RF Application Engineer.
You can find the service manual for the SD-24 at:
http://www.tek.com/osc
