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Re: Semiconductor test set advice
Actaully I think it's what a lot of the kids DO want. If it looks the same as it did yesterday, it's not "FRESH!" I worked with some developers a few years ago that were of that mindset. They were
By Dave McGuire · #105625 ·
Re: Semiconductor test set advice
Yeah, complete UI/UX changes with web services seem to be par for the course these days. Farcebook is a leading example. But I digress... Another thing to keep in mind with the Tek curve tracers is
By Sean Turner · #105624 ·
Anyone from HP that worked on the design of the 1700 Series Scopes?
I am trying to find details on parts used in the design of the 1703A and the 1707B. Specifically the FET's used in Option 20 the Vertical Output Amplifier. These would be matched FET's HP Part number
By Sam Reaves · #105623 ·
Re: How to check the accuracy of an HP 5342A frequency counter
FWIW General Radio in the instructions for one of its early frequency measuring assemblies recommended the "three oscillator" method of measuring differences. Where a source is being compared to WWV
By Richard Knoppow · #105622 ·
Re: How to check the accuracy of an HP 5342A frequency counter
First, make sure the Rb standard is locked. Second, couple the output of the Rb to a receiver and check it against WWV. Adjust the coupling so that the Rb signal is about the same strength as WWV. You
By Edward Newman · #105621 ·
Wanted: HP 8445b Preselector
hi, Wanted: HP 8445b Preselector . Please contact me off-list. thank you, rick
By gren · #105620 ·
Re: How to check the accuracy of an HP 5342A frequency counter
Thanks Chuck for that information.? I suspect that my rubidium reference may be on the old side.? I bought it used over 8 years ago and I used it a fair amount as a frequency reference for my Flex
By Terry Maurice <ve3xtm@...> · #105619 ·
Re: Semiconductor test set advice
Occulus, Thanks. Yahoo changed the interface so that it doesn't show unread messages in the SPAM bin :-( As a consequence I've been forgetting to check and empty it as I used to do every day. I do
By Reginald Beardsley · #105618 ·
Re: How to check the accuracy of an HP 5342A frequency counter
Atomic references are in general, short lived. Cs beam's run out of vacuum, or out of Cs (some debate about that!). Rb references plate out the Rb metal on the lamp's glass bulb, and get to a point
By Chuck Harris · #105617 ·
Re: How to check the accuracy of an HP 5342A frequency counter
I fully agree to Ed Breya. Your Rb standard very probably is not locked, 17ppm off is a typical sign for that. All such OCXOs (10544 or 10811) can never be out that far, if they are operating
By Dr. Frank · #105616 ·
Re: Maximum depth of HP rack mountable gear?
Avoid IKEA. Much of their furniture is hollow on the inside, especially the worktop desk surfaces. El Wife found that out painfully when drilling... With best regards Tam HANNA Enjoy electronics? Join
By Tam Hanna · #105615 ·
Re: RMS voltmeter HP 3400A - what does option C61 stand for?
Thanks, Jeremy,? Sean, Mine has C61 as well and it's no different from non-C61 version visually or in performance. Leo
By Leo Bodnar · #105614 ·
Re: How to check the accuracy of an HP 5342A frequency counter
The rubidium should be the most accurate of the bunch, except for the GPSDO. The method I have used is similar to the X-Y lissajous, but I use A, B ch, with B ch trig on a 100+MHz o-scope. Show both
By Don Bitters · #105613 ·
Re: Semiconductor test set advice
Hello, Tek 577 plus Stinkely Consumer Edition 577. (around 1 grand, probably 400 bux or so) Tek 577 plus Stinkely 577. (around 1 grand, probably 1k2 bux or so) Tam With best regards Tam HANNA Enjoy
By Tam Hanna · #105612 ·
Re: [hp70k] msib sniffer/injector interest query
JF, Thank you for sending the documents. I have uploaded them here: /g/HP-Agilent-Keysight-equipment/files/Above%2010000/70000%20to%20%2079999/70000%20MMS The interface specification
By David & Laura · #105611 ·
Re: How to check the accuracy of an HP 5342A frequency counter
I should add that the Rb would have to be assumed working properly - if it's a used, questionable one, then you need to make sure it's OK, evidenced, by a "lock" indication a while after powering up -
By Ed Breya · #105610 ·
Re: How to check the accuracy of an HP 5342A frequency counter
The simple answer is that none of the units are right, and all of them are just fine. You need to study up in the manuals on how the instruments work, what the reference frequencies do, the difference
By Ed Breya · #105609 ·
Re: How to check the accuracy of an HP 5342A frequency counter
[email protected]> wrote: Unlikely that you could set an OCXO 170 Hz out. The OCXO in my 8566B was 76 Hz out compared to my Trimble GPSDO. The closest I could get it was 70 Hz out. I found a NOS
By Orin Eman · #105608 ·
Re: How to check the accuracy of an HP 5342A frequency counter
One suggestion.? Compare to WWV and you will get your answer immediately. Bob
By Bob Albert <bob91343@...> · #105607 ·
Re: How to check the accuracy of an HP 5342A frequency counter
Since the SA and the two counters are not primary standards, someone down the line has adjusted them.? They all agree with one another but I'd vote for trusting the standard.? Align the counters and
By Bob Albert <bob91343@...> · #105606 ·