¿ªÔÆÌåÓý

Date
Re: HP8560E Low Level
I assume there are no error messages appearing anymore, right? Any error message about Log amp or step gain amplifiers? if there is no error and you are sure the attenuator and the input AC/DC
By amirb · #95799 ·
HP8560E Low Level
I am repairing a HP8560E and until now have been doing well. The unit on delivery had the classic distorted display and no apparent response to any input though it did sweep it was very slow. 12
By Dave Ireland · #95798 ·
Re: Anyone have the 4278A CLIP?
Update: I would still like to get the CLIP, but found two problems: The option switch on the CPU board was set wrong, and the wires to the LCD contrast pot were broken.? The instrument now seems to
By Peter Gottlieb · #95797 ·
Anyone have the 4278A CLIP?
I have the poor quality scan from the Keysight site, but it doesn't include the processor board. I have a lit up screen with no display.? Power supplies are good. My unit is serial 2936J09603 which
By Peter Gottlieb · #95796 ·
Re: Correct rack mount bracket?
Steve, your last two sentences are the critical ones¡ªI was not aware! Looking at the weight and depth of the 3456A however, it should have been obvious. I'll use a shelf or other larger instrument
By Jeremy Nichols · #95795 ·
Re: Correct rack mount bracket?
Yes, I kept moving instruments around in the rack and between the rack and the bench. When I noticed some distortion in the rack mounting rails (where I had a heavy HP power supply and a couple of
By Dave Daniel · #95794 ·
Re: Correct rack mount bracket?
Those look nice, Dave! For most of my units I ended up mounting aluminum angle in the racks and aluminum bar stock on the sides of the units, with Teflon tape so everything slides easily. Since the
By Steve - Home · #95793 ·
Re: Correct rack mount bracket?
I¡¯ve ended up using these ¡°AC Infinity Vented Cantilever 2U Universal Rack Shelf¡± items purchase through Amazon instead of HP or Tektronix OEM rack ears. The shelves are a lot easier to install,
By Dave Daniel · #95792 ·
Re: 431B Power Meter
I ended up finding a 432A for sale on ebay that included a 478A coaxial thermistor mount. It's in great shape (even still has both feet), but appears to have lost the little screw for mechanically
By Sean Turner · #95791 ·
Re: Correct rack mount bracket?
As I understand it, the thinner instruments such as the 3455/56 voltmeters are 2U, with two screws. Most others are 3U. Really large ones such as the 8664 sig gen and the 8569 spectrum analyzer are
By Sean Turner · #95790 ·
Re: Correct rack mount bracket?
Jeremy, Yes, those ears will fit a 3456A. They are definitely for use without handles. The ones for use with handles remaining attached have a notch at top and bottom to clear the handles. You will
By Steve - Home · #95789 ·
Re: Plastic snap-in bottom feet
Not sure about part numbers, but some of them were all plastic + metal legs, and others were plastic + rubber surface grip + metal legs.
By Colby Burkett · #95788 ·
Correct rack mount bracket?
Is eBay item number:173844545405 the correct rack mounting bracket for my HP-3456A DVM? All these "with handles" and "without handles" descriptions are confusing (if the sellers are even correct).
By Jeremy Nichols · #95787 ·
Re: HP 3325A - Help with photos of Option 002 PCB?
I have been looking for the Hi-volt option ( 100v out ) for the Hp 3245A universal source if anyone has information. That will be a simpler layout that the 3325A? Hi-volt option for it uses a Hi-Volt
By [email protected] · #95786 ·
Re: HP8340B Attenuator Verification and Cal software
I just spent several hours trying to make a usable copy of the 8340BCAL.imd file from the files section. Constant data errors reported by ImageDisk, despite spending time reading the documentation and
By Steve - Home · #95785 ·
OT: NLS Series MX-1 digital voltmeter
Hi all, OT, but I'm hoping someone here might know about this little nixie tube voltmeter from Non-Linear Systems in Del Mar, CA I found at my local surplus store while looking through a stack of
By Sean Turner · #95784 ·
Re: HP 3325A - Help with photos of Option 002 PCB?
Yeah, I'm part of that thread. :) I have got most of the stuff sorted out and cross referenced, I just need to find a source on short RCA cables with right angle plugs on each end.
By Jared Cabot · #95783 ·
Re: HP 3325A - Help with photos of Option 002 PCB?
Hi, Looks like others are interested in this project too and already cloned this board. http://www.eevblog.com/forum/testgear/cloning-the-hp3325a-option-002-hv-output/ Szabolcs J. L. Trantham
By Szabolcs Szigeti · #95782 ·
Re: Plastic snap-in bottom feet
Hi The larger unites used 5 of the small feet Another type for the 1/3 units such as a 432 power Another type for the 1/2 units such as a 431 power
By Paul Bicknell · #95781 ·
Stuff Day is this saturday at Sphere!
Just a reminder, stuff day is this weekend (saturday) here at Sphere Research Corp. Hope to see? you there, we have a lot of HP goodies (modules, spares and boards) we are giving away to anybody that
By walter shawlee <walter2@...> · #95780 ·