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Date
Re: HP8510B Reading and writing A13 EEPROM, problem with Xicor x28256
If you wind up needing help, I can write a good Eprom for you Cheers! Bruce
By Bruce · #141157 ·
HP 54522A Firmware Re-flash Error
Hi, I'm getting an error when I try to re-flash the firmware from disk on my HP 54522A oscilloscope that I purchased a year ago. The scope has been working fine for a year and started giving me
By maltman01@... · #141156 ·
Re: Old style oval HP power cords
Hello and happy new year to the group. I have a number of older HP test gear that has the small 3 pin cords and also have the correct cords. What I am seeing is the typical 40 year plus plastic/rubber
By paulswed · #141155 ·
Re: Agilent E4406A / 16700 CPU issue
I am not sure if this will help but my E4406A had a black screen after power on. I removed the 2 daughter boards on the motherboard (flash board and additional RAM board). After this, the E4406A
By Razvan Popescu · #141154 ·
Re: HP8510B Reading and writing A13 EEPROM, problem with Xicor x28256
Hello, Good points. I checked voltage and noticed only approx 20 mV drop during access to the ICs. Only checked one of the ones that were successful in writing. Will check the other ones also. Away
By Staffan · #141153 ·
Re: Agilent E4406A / 16700 CPU issue
The crystal and clock is fine. I measured 150 MHz on the clock generator IC, which is the correct frequency. The ROM is soldered to the board, and desoldering it would be a pain. I have a programmer
By Board · #141152 ·
Re: 00105-6013 HP crystal oscillator wanted
Thanks very much for the link. It's exactly what I was looking for! Morris
By Morris Odell · #141151 ·
Re: HP8510B Reading and writing A13 EEPROM, problem with Xicor x28256
Hi. As in all things EEPROM related to programming trouble. 'Sope the Power rails, make sure they are not sagging during the actual writing phase, even for a fraction of the time..? Also, the actual
By Dave_G0WBX · #141150 ·
Re: Agilent E4406A / 16700 CPU issue
That's much newer than the ancient 8085 or 6809 micro that i'd rather be working on, but the same principles should apply. Does your micro IC have power and ground?, it sounds like it does. Did you
By VE6WMR · #141149 ·
Agilent E4406A / 16700 CPU issue
I have an Agilent E4406A which has a broken CPU board. This is the same board in the 167xx logic analyzers, which I'm pretty sure a lot of people here have experience with. The board gets stuck during
By Board · #141148 ·
Re: Old style oval HP power cords
Greetings, I may have some of these power cords. Do I correctly remember that there were two different wiring relationships between the male plug and the female socket? I¡¯m thinking I would like
By ken chalfant · #141147 ·
Re: 00105-6013 HP crystal oscillator wanted
See if this helps. http://www.leapsecond.com/museum/10811a/HP_105A_B_manual_addendum_later_units_with_10811_OCXO_1989.pdf Good luck. Joe Sent: Tuesday, January 2, 2024 3:16 PM To:
By J. L. Trantham · #141146 ·
Re: 00105-6013 HP crystal oscillator wanted
Thanks David, I have a possible source for a 18011 but if I go down that path I would need to make up a substitute for the 05061-6199 interface board shown in the pic. It doesn't look too complex.If
By Morris Odell · #141145 ·
Re: Old style oval HP power cords
When I got some old Ludlum rad gear that used these oval cords with reversed hot and neutrals, I bought some newer oval cords and cut then reversed the hot and neutral wires, soldered back together
By Nick Andrews · #141144 ·
Re: 00105-6013 HP crystal oscillator wanted
Hi Waz, I'm in Melbourne too so if the 6012 is compatible that would be terrific! The 6013 has four SMB connectors and 3 or 4 pins for single wire connectors for the power supplies and monitors
By Morris Odell · #141143 ·
HP8510B Reading and writing A13 EEPROM, problem with Xicor x28256
Hello, Starting a new thread, although this is a direct continuation of an earlier one. /g/HP-Agilent-Keysight-equipment/message/135714 I have verified both reading from, and writing
By Staffan · #141142 ·
Re: Old style oval HP power cords
I also convert any item I come across to IEC - it's a character building exercise in some cases! I keep one oval connector power cord just for testing. Down here in Australia they are REALLY hard to
By Morris Odell · #141141 ·
Re: Old style oval HP power cords
I scour the bins at hamfests and have come up empty for the last couple of years. They seem to be getting a bit harder to find as fewer people have interest in that vintage of equipment. Paul -- Paul
By Paul Amaranth · #141140 ·
Re: Old style oval HP power cords
Well, not to appear self serving (because its not a big deal to me) but I have some originals on eBay from my multiyear collection stash and I just dont need that many anymore. So I know there are
By Jeff Kruth · #141139 ·
Re: Old style oval HP power cords
Are people really having such a difficult time finding the proper cables? They do show up from time to time. I've never had much trouble getting them when needed. It sure beats all this hacking about.
By Dave McGuire · #141138 ·