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Re: HP 8660B/86602B developed output stability problem, getting-started suggestion(s) request
First experiment - swapped 11661B module with a supposedly-OK "just in case" spare I had picked up a long time ago (with understanding that the 11661B manual has an adjustment procedure to use when
By David Feldman · #150426 ·
Re: Thoughts on Hakko FR301
I have a job that requires removing a 56 pin PCB connector from an HP 6 (or so) layer motherboard. I'm considering the Hakkp FR301 desoldering tool - if anyone has experience using this tool for a
By Bruce · #150425 ·
Re: Accurately measuring 1000pF and 100pF capacitors, to calibrate 4276A?
Well, I just picked up an Arco SS-32 Precision Standard Capacitor Set for the equivalent of about $75 all up, so that's a start. It has some missing values and a number of doubled up values too (maybe
By Jared Cabot · #150424 ·
Re: 8753C VNA option upgrade
Hi Caesar, I hope you're well. Yes, now I remember that did come from you. Thank you so much for the service you provide, you're a credit to the community! J.
By Jinxie · #150423 ·
Re: HP Agilent 8753ES VNA repair [Help]
Hi, To make a first comparison, here is the output of my 8753ES at 1GHz, CW mode, 0dBm output, Trigger HOLD, measured on a Spectrum. If you have a similar image, the PLL A11 would be correct.
By Yves Tardif · #150422 ·
Re: E5052A Power On Test (3.3V Bus Supply)
Sounds about right. 60 kHz is right in the range of a switching regulator of that era. I didn’t find a signal source analyzer around the particular lab I frequent, but I’d be very surprised if
By Jim Ford · #150421 ·
HP Agilent 8753ES VNA repair [Help]
Hi everyone, I am looking for some help on the repair of my 8753 VNA. I took some time trying to find the problem it myself with the service manual without success. The unit was working great and
By MattSNE · #150420 ·
Re: Accurately measuring 1000pF and 100pF capacitors, to calibrate 4276A?
Both your 4276a and 4263b can measure ESR. So you may take the Henry Parsons Hall way, which he did at general radio with the digibridges: First he calibrates the measurement-frequency
By RolandK · #150419 ·
Re: E5052A Power On Test (3.3V Bus Supply)
Turning the backlight off makes the spurious term go away when probing :) There is a soft menu button that turns off the backlight and pressing this makes the spurious vanish on the probe (that feeds
By jmr · #150418 ·
Re: E5052A Power On Test (3.3V Bus Supply)
Hi Jim, thanks. I've just spent some time fishing around the outside of the chassis with a loop probe and the 60 kHz spurious is from the front of the instrument around the display. It isn't a single
By jmr · #150417 ·
Re: E5052A Power On Test (3.3V Bus Supply)
Hi, Jeremy. Let me take a look around the labs here at Raytheon. Might be an E5052A or two that I could fire up. Give me a couple hours. Jim Ford Laguna Hills, California, USA
By Jim Ford · #150416 ·
HP 8660B/86602B developed output stability problem, getting-started suggestion(s) request
My HP 8660B/86602B (owned since 1995 - I've owned it longer than it's initial life in industry, I believe) failed to produce a stable output signal when powered up a few days ago (it has worked
By David Feldman · #150415 ·
E5052A Power On Test (3.3V Bus Supply)
I wonder if anyone here has experience or access to an Agilent E5052A signal source analyser? Mine is about 20 years old and is recently showing signs of unreliability. The main symptom is an
By jmr · #150414 ·
Re: Accurately measuring 1000pF and 100pF capacitors, to calibrate 4276A?
I use a Boonton 76-3A precision decade capacitor for my calibration checks. I originally picked it up for calibration of an old Boonton 72BD meter (0.001 to 2000 pF capacitance range) but it now also
By Greg Muir · #150413 ·
Re: Accurately measuring 1000pF and 100pF capacitors, to calibrate 4276A?
If you need accurate measurements, I do have an Andeen-Hagerling 2500E which can measure C @1kHz to better than 5ppm and 8 digits resolution even at 10pF. I rarely get it calibrated but its still the
By Richard Parrish · #150412 ·
CRT unit for 8593A compatible
I have a 8593A with a display problem. There is a spare offered, HP 2090-0514 "for 859x E" question here: is this full compatible and useful in my 8593A? thank you
By Martin M · #150411 ·
Re: 8753C VNA option upgrade
Jinxie, That keyword text is obviously what I wrote to you at some point.? Anyone with an 8753/8752/871x/8720/8719/8722/8702 can write to me (with the s/n) and get the keywords they need to enable
By Caesar Valenti · #150410 ·
Re: HP54502A Oscilloscope fail A/D test and cal
Fail code 0000 0000 0101 1110
By Mr Lurpak's Electronics Rescue · #150409 ·
Re: 8753C VNA option upgrade
Hi Jinxie, Thank you very much for replying. I am currently in the process of attempting the upgrades: I did receive some feedback on the subject - I just need to ensure that I take the time to
By N.keyser@... · #150407 ·
Re: Accurately measuring 1000pF and 100pF capacitors, to calibrate 4276A?
A General Radio 1422D dual range variable would meet the specification. Needs the calbration chart though. The earlier 722D would be OK if calibrated and used at same temperature. Not many units neet
By Robert G8RPI · #150406 ·