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I haven't looked up the pinout because I really need to get to sleep, but from the photo this board looks *exactly* like a DIO bus RAM board for an HP-9000 series 300 computer.

Here is a collection of data I have on the Hp 3852a expansion port and memory modules : Its a Dram module opposed to the SRAM internal memory The memory controller used is National DP8409A memory

Have you got an email address for him? All I get is a log in screen with no option to request access. Thanks, Steve

Very interesting i didn't realize some heaters are run in series. I checked the cold resistance of the 88V heaters and is 126 ohm which divided by 14 heaters makes 9 ohm, about right for a single 6.3

The EMC version of the E440xB has monochrome as standard, with an option for color The "normal" versions has color as standardThe colors are gone due to defective backlight?Replace it with two LED

Hi, Out of curiosity, does anyone know if the E440xB series has an option for a monochrome display. I have seen several photos where you see an amber-colored monochrome screen. I thought

Hi John You are absolutely right! I am also no longer sure what we are talking about…The X series start with CXA and so far stop at UXA.They all have a lot in common-especially software

Are we talking about the EXA version, the cheapest model of the series? Not EXT? Until someone has real time S/A via FFT option in these, they don't jump out at me. I have a Rigol now at home that

One of the best (free) manual sites that I don't see mentioned is Dr. Simon Schr?dle's site: http://www.schroedle.de/Manuals/ Many are of higher than normal quality - there is a login but all you

Have a look at the following thread on eevblog's forum: https://www.eevblog.com/forum/testgear/enabling-options-on-agilent-esa-series-e4402b-e4404b-e4405b-e4407b/ The guy to contact is: "PA0PBZ". It

If that heater string is open, the +80 and -150 volt supplies should run wide open, because the control tubes would be nonconducting. Hugh [email protected]> wrote:

I have had complete copy on my computer, but I have sorted it to my folders and deleted ton of the stuff :D. At least I have copied things from that source to the download folder to speed the thing

Yes Joel, more or less: bee.mif.pg.gda.pl/ciasteczkowypotwor/ And there's a readme Renaud

Correct. The EXT is nothing like an MXA, except for the processor board being similar construction but not firmware compatible. During the transitions form HP to Agilent and Agilent to Keysight,

OK, I see that now—schematic is hard to read. Agree, looks like the two sections depend upon each other. Jeremy [email protected]> wrote:

Apparently V30 & V33 have their heaters fed from the +88V rail, in the series string of 8 valves, having only +31V is going to prevent the control valve/tubes from working in the -150V & +88V, seems

John This must stop The EXT wireless STATIONS have nothing hardware in common with the X series-besides it`` seems`` to have same processor board.If one look at EXT and MXA you see just

[email protected]> wrote: I have an LCR meter which is HP but the firmware says Agilent. A real PITA to get Keysight to upgrade it free. They used to (perhaps still do), say on a document the

A ton of manuals, indeed !!!!! I feel like a kid in a candy store ... With appnotes, bench briefs, and more ! Is there something that looks like an index ? Joel Setton

Hi Hardy. The EXT is a very similar instrument, possibly cheaper? I contacted Keysight with my serial number and it came back as an EXT so seems it has been upgraded (CPU & O.S?) to MXA. Ok some may