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Re: Threads for screws on 8656 Siggen
p. 6-36. 4 * MP101, 6-32. G?ran
By G?ran Krusell · #150877 ·
Re: 8643A failure
Dear Bill, Many thanks for the update. My 8643A has displayed this fault code from time to time. I will check the connectors carefully when I take it out of the rack for oven power supply
By alwyn.seeds1 · #150876 ·
hp8970a recallibration attenuator help
hello all I have a hp8970A meter that has been turned off for a long time. I turned it back on and I know that the internal attenuator needs to be recalibrated with the special command function SP
By Roberto · #150875 ·
Re: Threads for screws on 8656 Siggen
There's also a 3.5mm standard thread, used on IEEE-488 connectors, that might be a possibility. Steve Hendrix
By Steve Hendrix · #150874 ·
Re: microscope / high magnification camera options for soldering, faults, and other examinations/inspections
I have used a stereo zoom microscope from Titan Tools for several decades, for soldering mostly down to 0603, sometimes 0402, and occasionally 0201. Stereo, because you really need the depth
By Steve Hendrix · #150873 ·
Re: microscope / high magnification camera options for soldering, faults, and other examinations/inspections
Radu, I picked up a Tomlov brand digital microscope that is handy for soldering and board inspections. There are several styles available on Amazon for prices as cheap as $70. The advantage to it
By Greg Muir · #150872 ·
Re: Threads for screws on 8656 Siggen
It is likely that they are imperial 6-32 pan head pozi-drive ( looks like a Phillips head, but slightly different.) The outside dia. of a 6-32 screw is about 0.138 inch (~3.5mm) and 32 threads per
By Hugh Gilbert · #150871 ·
Re: microscope / high magnification camera options for soldering, faults, and other examinations/inspections
With all the amazing improvements to the optics and imaging electronics over the years, I don't think you'll have much trouble there, except for assessing and deciding. Even in low-light conditions
By ed breya · #150870 ·
Re: HP 8643A and Capacitors
My 8643 failure message indicated 5V supply failure. Voltage at test point measured 4.9 volts. I replaced all the capacitors in both switching supplies of the 8643A. Both supplies checked out OK
By Bill Carver · #150869 ·
Re: HP 3403C True RMS Voltmeter display fault
Nice. I hope mine works as well when I eventually get back to it.? Ed
By ed breya · #150868 ·
Threads for screws on 8656 Siggen
Hi can someone tell me what thread the screws are that hold the back panel on? HP8656. I am assuming they are 5/32 as 3mm and 4mm metric are either too small or too big. or wrong thread Are the UNF ,
By Wayne Eckert · #150867 ·
microscope / high magnification camera options for soldering, faults, and other examinations/inspections
Having done enough (red) eye cracking smd soldering jobs or inspections in case of suspected failure (cold joints, etc.), I've decided to invest a bit on a better optical setup. There's plenty of
By Radu Bogdan Dicher · #150866 ·
Re: 8643A failure
Thanks for posting a follow-up. Glad your 8643A is working. Tony AD0VC ________________________________ Sent: Sunday, March 16, 2025 6:26 PM To: [email protected]
By mux_folder2001 · #150865 ·
Re: 8643A failure
My 8643 failure message indicated 5V supply failure. Voltage at test point measured 4.9 volts. I replaced all the capacitors in both switching supplies of the 8643A. Both supplies checked out OK
By Bill Carver · #150864 ·
Re: HP859x Power Supply Schematics
thanks Chris for the superb job ! adri ----- Messaggio originale ----- Da: Chris Weir via groups.io <chris.a.weir@...> Rispondi a:
By alfa beta · #150863 ·
Re: Keysight 23522a Binary Arb Files
Hi Tom, There is some information about this format here: https://github.com/jeremyherbert/barbutils Yves De :
By Yves Tardif · #150862 ·
Re: HP8510C CalKit file .CK_ format
Hi Marcus, Thank you for your idea! I followed your idea of sending commands to 8510c let it generate a binary file. I ended up writing a very small and primitive XML parser that's good enough to
By Calvin Guan · #150861 ·
Re: 3" disks for 8566A/B, 8568A/B on HP 9000 Series 200 Computers - Any interest in images?
I am using an old Toshiba Portege 7200 laptop which has the slim floppy drive in the docking station and it runs WinXP. This laptop has a P3 CPU/128MB RAM/64GB PATA IDE SSD. Never had issues with it
By Razvan Popescu · #150860 ·
Re: Artek manuals
I contacted them, reply was that a search of email folders didn't show this sender. Use this email address, from their website. *manuals@... ( manuals@... )* regards,
By Ron · #150859 ·
Re: 3" disks for 8566A/B, 8568A/B on HP 9000 Series 200 Computers - Any interest in images?
Your PC must support 256 and 512 byte sectors and the number of sectors per track used by LIF formats to successfully read/write disks. “Super IO” chips that implement PS2 keyboard/mouse, IDE, a
By Ed Marciniak · #150858 ·