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Isn’t that because the buttons on the 3325A are the old clicky ones and the 3325B later versions are the rubbery membrane type which have a slight difference in panel aperture spacing/size.. Just my

Hi Peter! The guy took the original one, but I came across another the other day, so glad you wrote. I will verify and get back with details.Jeff

I have also used National Test Equipment for some microcircuit repairs. I believe that when HP consolidated u-circuit manufacturing, then laid off that work force, quite a few of those folk got hired

Perhaps that may be so, in part, but if you take a nicad cell that is crusted up with whatever, and put it into a vinegar solution it will foam up vigorously for about 1/2 hour. There is so little CO2

Yeah, I hear you on the ethical side.... I tend to consider just how far the needle swings on ethics. A 20 year old piece of gear that is no longer sold new and listed as obsolete doesn't really move

It might be possible to fill the new freq cal area with something it won't complain about. But...software options definitely will invalidate. Regardless, I will still be trying to read the cal info

Looks to me like the bottom two pictures are the same pcb from differing positions. The upper image is a just a later revision of the board with the screen legend corrected and an SMA type connector

Very interesting!!!! Please subscribe me to the group. Jan Boutsen? ? ON4MMW

Another good acid is carbonic acid. In the presence of some water, this forms automatically from the CO2 in the air, so unless the spill was recent or the air was confined, the alkaline may already

I know what you mean. Surprisingly the company who made them still makes them and will sell in smaller quantities. We usually buy 10 to 15 sets at a time. Regards, Stephen Hanselman Datagate Systems,

I know exactly what you're talking about.? I've had computers which use those and they always split or break off.? Supposedly this unit has been sitting on a shelf for a while (it was an estate

With the 3456 the major issue is the absolutely stupid plastic plunger/socket things they used to fix the boards to the chassis. They have caused more problems than anything else. We’ve started

Great reading.? "It's a moral imperative."? One of my favorite lines from "Real Genius" and it absolutely nails the drive to fix an instrument. Up to this point I've fixed several broken 1970s-80s

Sorry for the delay in responding. Sounds li

Contact Louis, he can almost certainly repair it. /g/HP-Agilent-Keysight-equipment/topic/new_group_on_chip_and/24781695?p=,,,20,0,0,0::recentpostdate%2Fsticky,,,20,2,40,24781695

Hi First, the diodes will be small bonded ones, either beam lead or wire bonded. I have not opened one of these, but I have looked in one that also contains the high band mixer, so I'm pretty sure it

The 3314 is a very nice little unit. We (well my partner) repair a fair number of them. If I’ve got the correct unit in my mind the power supply is our biggest issue. The regulator transistors use

Download the 8657A Service Manual from?KO4BB.COM ( http://KO4BB.COM ) , and use Service Sheet 16 to troubleshoot the problem.

...Another solution that I am considering is to buy a microwave SPDT switch (even SPST can do) and put it between the attenuator and the input of YTF. For the high band the switch will pass the signal

I've got a 8595E which works perfectly fine in the high band but it's about 24-26dB down (almost flat) in the low band (9K-2.9G) Long story short, by doing various measurement, I have confirmed that