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Oh, and yes they are tinned pins. Grrrr. When I was designing things the purchasing department gave me hell about it, but I insisted that all the 0.025" pins HAD to be gold flashed.

TU Don. I don't remember seeing browning on the white connector body but I'll take a careful look. It "feels" like it has to be something bizarre like that!

This thread reminds me I have two old Dell mini-cabs running Win2k I got specifically to run MAME on for arcade cabinets. And a few old laptops I have been holding onto for a lab machine that is more

If your software can use USB/serial or Telnet to access the data, my KISS-488 offers a whole lot of OS-agnostic and platform-agnostic ways to access GPIB. www.hxengineering.com Steve Hendrix

Some HP gear used molex connectors for power to the motherboard. It is not uncommon for the higher current pins to show a brown heated condition. Easily proven by simply bypassing the pin with a big

Well, yes, I probably could try to fix the old machine, but the limiting factor is time.? If you're retired, and I'm not, that may make sense.? No rabbit holes here, thank you very much!? And

I'm not a windows fan, but a while back got a tiny machine with windows 8 on it. It felt like using a phone as a computer. It updated to 10 (painfully, it didn't really have enough free space to do it

Also, I have seen the intermittent caused by an intermittent interconnect cable on the rear. Usually a broken wire inside the connector from cable stress or worst case where the cable meets the

Not 100% sure, but I believe the power supply to mother brd. connection is a Molex to tinned pins connector on either the power supply brd. or mother brd.. On the 85662A display unit the tinned pin

Thanks, Chris! For anyone else digging, they are

Hey Jim, I'm a little late to the party here, but what about just fixing the original PC? You didn't mention the type of kaput-ness involved, which could be a number of things ranging from trivial to

Also check for loosy rear cable bus connector. In my unit there is some play in the centronics connector and that not let boot the instrument. Cheers, R.

Thank you Don.? I appreciate the reply. Scott

The 2 check LED’s deal with the state of the instrument and the communications between the upper and lower units. If the upper unit does not power up but the bottom unit does, IIRC the right LED

You might try resoldering the power connectors on the IO board, filter board and main supply board. Otherwise, bad cable, crimp? You might find that it fixes itself when you put it all back together.

My 8643A started doing a "recalibrate" every time I turned it on. Once the 8643A completes that "recalibrate" its RF output and frequency are OK, although I have not tested every aspect of modulation,

Anyone who downloaded my schematics of the Output Regulator should update them with those I have just uploaded to the files section, along with the schematics of the other two boards. I found a couple

The following items have been added to the Files area of the [email protected] group. * /All HP, Agilent and Keysight instruments in folders by part numbers/8000 to 8999/8590

Hey everyone, Having recently picked up an Hakko 474 I've decided to desolder every electrolytics in the PSU to test them before ordering some. To my surprise they're all well within specs, close to

Just as another data point, I do know for a fact that a PCIe to PCI bridge, NI PCI GPIB card, and Windows 10 64 bit will work.? I have yet to run any program that won't work with it, but I am sure