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Date
Date set for next Sphere Stuff Day/Ham Swap Meet
After lots of data collection, historical weather checking, and polling, Saturday, APRIL 9th is the date for the next Sphere Stuff Day and Okanagan Valley-wide Radio Amateur swap meet. This gives
By walter2@... · #73572 ·
8590E Video Display problem
I have an HP 8590E in which there is no video on initial power up. But consistently, if I shut the 8590E down anytime after about 2 minutes and turn it again, the display is perfect - until the next
By pbbob426@... · #73571 ·
Re: Weinschel step attenuator gets stuck
Tom, Afraid I don't have any help with this problem but a very warm welcome to the HP group. For those who don't recognise Tom's name and callsign, he is the brilliant designer of the DG8SAQ vector
By iancooper@... · #73570 ·
Re: Test Equipment where battery failure causes SERIOUS problems
drkirkby@...> wrote: Just to clarify, the extra hour was not for replacing the battery - the owner had already done that. The extra hour was for the fact every range needed zeroing
By Dr. David Kirkby (Kirkby Microwave Ltd) <drkirkby@...> · #73569 ·
Re: HP DVM / DMM technological history
The 970A- I'm still chasing a battery pack for one- dead or alive (I just need the case)- but son has recently got a 3D printer- I smell success looming! Dave, ZL3FJ
By Dave Brown <tractorb@...> · #73568 ·
Test Equipment where battery failure causes SERIOUS problems
For many bits of kit, a battery is used to run a real time clock, and a failure is not a big deal. But for others it can be quite serious. It would be useful if we had a list of HP equipment where
By Dr. David Kirkby (Kirkby Microwave Ltd) <drkirkby@...> · #73567 ·
Re: HP DVM / DMM technological history
I just won a 3476B on ebay. I always wanted one of these "tricorder" DMMs. Item No. 272125448332 (the lit decimal points are just low battery indication) Robert G8RPI.
By Robert G8RPI · #73566 ·
Re: HP DVM / DMM technological history
I have a 405AR and a 970A. Also a Non HP Digitec Z-204B.?Leon Robinson ?? K5JLR Political Correctness is a Political Disease. To: hp_agilent_equipment@... Sent: Tuesday, February 16,
By Leon Robinson <leon-robinson@...> · #73565 ·
Re: HP DVM / DMM technological history
Speaking of the 3478 (which I also have), is the 3468. It¡¯s very similar to the 3478, but uses HP-IL rather than HP-IB. (this was for use with the handhelds like the HP-41, HP-71 and the like). Daun
By Daun Yeagley · #73564 ·
HP/Agilent T&M Catalogs for Sale
I have all the HP/Agilent Test & Measurement Catalogs from 1985-2001 in excellent condition as well as 2ea 1989 (50th anniversary) catalogs in their original box. I worked at HP/Agilent in Baltimore &
By Mike Everhart · #73563 ·
Re: HP8593A Power Supply repair
Roumen, I would like to have a copy of the power supply schematics if it is possible. My HP8591A has the low 5.2 volt supply problem that others have mentioned. I am very experienced in this type of
By Michael Daniel · #73562 ·
Re: HP DVM / DMM technological history
How about the workhorse 3478? Very popular and as low as $150 guaranteed working on eBay. PS: My stable of HP DMMs is a 3456, 3457, and 2 3478¡¯s. Regards, John K1AE Sent: Tuesday, February 16, 2016
By John Allen · #73561 ·
Re: HP DVM / DMM technological history
A side note: HP advertised but never produced: >>> http://www.hp9825.com/html/analog_i_o.html <<< "Prism, the interface card that never was" I/O card for reading voltage. Dennis
By czelusniakd · #73560 ·
Re: Replacing ROMs!
Didier has done a great job with his site, then again it is always a good idea to have data in more than only one place at a time, the IT world MTBF is likely lower than the human one. Paul
By shakalnokturn · #73559 ·
Re: HP DVM / DMM technological history
Greetings, Two interesting HP DMM¡¯s were the HP 3476A which could be configured as a stand alone DMM or integrated on top of a scope. The other was a unique handheld auto-ranging probe-like DMM -
By ken chalfant · #73558 ·
Re: HP DVM / DMM technological history
You are missing the 3480. Do you want to include companion units like the 3495 Scanner ? I worked at the Loveland Instrument Division, LID, on voltmeters from 1969 until 1975 on various projects.
By Larry Bower <lbeng@...> · #73557 ·
Re: HP DVM / DMM technological history
Yes, the 3458A should definitely be in there: http://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1989-04.pdf [hp_agilent_equipment] <hp_agilent_equipment@...> wrote:
By Orin Eman · #73556 ·
Re: HP DVM / DMM technological history
I am trying to stick with one company at a time first, then I will need to branch out to the other quality makers to compare and learn. I know the 405 was a commercial flop relative to the 3440 and
By David G. · #73555 ·
Re: HP DVM / DMM technological history
The real flagship DMM from HP is still the 3458A, it remains the favorite of most high end cal shops and is used by many as their primary shop standard. capable of accuracy to a few ppm in some modes,
By walter2@... · #73554 ·
Re: HP DVM / DMM technological history
I don't know if you want to include them, but there were also some scopes including the HP 1715A and Tek 465B that had digital multimeters glued to the top.
By Max Frister · #73553 ·