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Latest KE5FX utilities released
Just found this release from 2 weeks ago. Looks like a lot of improvements from the 2013 version I had been using. Thanks John! file:///C:/Program%20Files%20(x86)/KE5FX/GPIB/readme.htm Tom Holmes,
By Tom Holmes · #122106 ·
Re: HP 1740A
Also check the bridge rectifiers near where the wire harness plugs in from the transformer. I've have quite a few of the 1700 series that had shorted rectifiers causing similar issues. That and the
By Jay Heine · #122105 ·
Re: 54503A
Hi Bill, see attached PSU schematic I got from a guy back in 2009 when I was trying to repair my HP 54501. I also have the 54501 schematic in PDF ( from 90903 service manual supplement)? if anybody
By sv1aku · #122104 ·
Re: Looking for a HP 1610B ROM image.
Hi Glenn, If I was in a hurry, I wouldn't chose a 1610 ;) Take your time, a spare set would be nice but with the ROM image(s) I would be helped a lot. If it's not to much work it would be nice to have
By Rik Bos · #122103 ·
54503A
Howdy friends, I have a pair of 54503A scopes. Both had the dreaded Dallas semi Battery ram chip go bad. I purchased a new Dallas unit and pulled the bad installed a socket and the new unit. Now The
By N5ZTW · #122102 ·
Re: HP85101B: looking for for A7 switching regulator schematic
What I am looking for is the schematic for the main board in the 85102. It's not shown in the parts list but I believe it is designated A25. The parts list in the service manual shows part numbers for
By Steve - Home · #122101 ·
Re: Looking for a HP 1610B ROM image.
If you're not in a rush I can get to this eventually. I'm currently physically challenged with limited use of a hand for a few more days. Given the size & weight of a 1610B it would be difficult to
By Glen Slick · #122100 ·
HP 853A spectrum analyzer display ROM image
Hi, I've been trying to debug the digital display section of my HP 853A (with an 8559A plugin). The analogue display seems to be OK.? I've been through signature analysis and it looks like either the
By Tony · #122099 ·
Re: Defective YTO 5086-7906 HP-8561E
If you are talking about National Test, their prices are in my opinion excessive. He asked just a little under 1K for an 8340B YIG. If you are not talking about them, I'd like to know who you are
By Bruce · #122098 ·
Re: 8015A Pulse Generator ("Parts or Repair")
I had an 8015A about ten years ago. Beautiful machine, should¡¯ve kept it. Separately variable rise and fall time from nanoseconds to fractional seconds. I don¡¯t remember it making an unusual
By Dave Wise · #122097 ·
Re: Defective YTO 5086-7906 HP-8561E
There is a gentleman on that popular auction site who does a rebuild service. I think he charges somewhere in the $600 US range. He should be able to do any YTO out there.
By Matt Harris · #122096 ·
Re: HP 8566B non-volatile data to backup
Good sleuthing! -Dave -- Dave McGuire, AK4HZ New Kensington, PA
By Dave McGuire · #122095 ·
Looking for a HP 1610B ROM image.
I'm restoring a HP 1610B logic state analyzer and found out that one of the ROM's is defective, Reading it gives different outcomes, so I'm looking for a copy of the U19 ROM 1818-0944 the ROM's are
By Rik Bos · #122094 ·
File Notifications #file-notice
The following files have been uploaded to the Files area of the [email protected] group. * /1000 to 1999/16xx and 16xxx Series Logic Analyzers Manuals and Accesories/ROM Images
By [email protected] Notification <noreply@...> · #122093 ·
Re: 5088-7017 part equivalent for 10855A 2-1300MHz preamplifier?
Thanks for the heads-up! I have some on order now. Thanks, Jared.
By Jared Cabot · #122092 ·
Re: HP 8566B non-volatile data to backup
Thanks for the info Vladan! FYI I checked those 6 numbers against the results from SHIFT-LINE on my 8566A and they check out. The first 6 numbers in the ROM are: 03 08 07 0c 0f 13. The last 6 lines of
By Matt Huszagh · #122091 ·
Re: 8566B YIG Unlocked
I appreciate the thanks, but you may revise your judgement after you have goon through the process. It is a BITCH the first time - gets a lot easier after that, but not easy the first time. You will
By Bruce · #122090 ·
Re: 8015A Pulse Generator ("Parts or Repair")
I'd like to button up this project if possible. It's been on my bench for too long! I (carefully) brought it up w/o issue. Ran through some testing and it appears to work well. However, the unit
By Mark Bielman · #122089 ·
Re: 8566B YIG Unlocked
Thank you!
By Francesco Ledda · #122088 ·
Re: 8566B YIG Unlocked
Trouble shooting is fairly straightforward (and tedious). Generally a 2nd spectrum analyzer is needed but it can e done with a diode detector, a power sensor, and an oscilloscope plus a lot of
By Bruce · #122087 ·