Re: Threads for screws on 8656 Siggen
p. 6-36. 4 * MP101, 6-32.
G?ran
By
G?ran Krusell
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#150877
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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
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#150876
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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
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#150875
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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
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#150874
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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
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#150873
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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
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#150872
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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
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#150871
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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
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#150870
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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
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#150869
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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
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#150868
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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
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#150867
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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
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#150866
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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
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#150865
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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
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#150864
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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
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#150863
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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
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#150862
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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
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#150861
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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
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#150860
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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
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#150859
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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
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#150858
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