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Re: HP 5315A With Destroyed Gate Pot and "frozen" Frozen Knob
FWIW, somebody on this group or the Tek group recommended a product called Kroil a while back. I bought some to try on a couple things I knew were going to be impossible to unscrew - and it worked
By Steve Hendrix · #140247 ·
Re: HP boxes: direction of air flow
It is quite common for the casing to have ¡®positive¡¯ pressure in order to keep any foreign bodies out unless they are filtered through Any grille/filter foam mesh etc. HIH Regards Nigel
By nigel adams · #140246 ·
Re: HP boxes: direction of air flow
Hello Tom, Normally outside in as far as I know. The fan will not blow against a dust filter, will it? Cheers, Harke
By Harke Smits · #140245 ·
Re: HP 5315A With Destroyed Gate Pot and "frozen" Frozen Knob
Hi William, Been there, done that -- but IMHO WD-40 is not the best choice. Its main use is a water repellent. I would do this : - Try to get any grease, etc ... out of the thread with a little IPA
By Joel Setton · #140244 ·
HP boxes: direction of air flow
Hi folks, is there a general rule for HP boxes with fan how the airflow is routed? Does the fan blow air into the box or suck it out of the box? I have a 8517 with missing fan, so I need to
By tom_iphi · #140243 ·
Re: HP 5315A With Destroyed Gate Pot and "frozen" Frozen Knob
Unfortunatly the pot with switch has been discontinued by Bourns. Last one I repaired I managed to make one up using a switched pot of the wrong resistance value and the resistance track off a 470k
By Robert G8RPI · #140242 ·
Re: HP 5315A With Destroyed Gate Pot and "frozen" Frozen Knob
William, on the buggered setscrew, I will relate what has worked for me - occasionally! I grab a piece of hard steel, like the tang of a small file or - my favorite - one of the old-style square cut
By n4ua · #140241 ·
Re: HP 5315A With Destroyed Gate Pot and "frozen" Frozen Knob
Hi William, You may have to sacrifice the pot by carefully sawing the shaft off, then the frozen knob can possibly be worked on in a more accessible location to prevent risk of front panel damage.
By nigel adams · #140240 ·
Re: HP 5315A With Destroyed Gate Pot and "frozen" Frozen Knob
Did that with no success. Thanks. -- William, k6whp -------------------- "Cheer up, things could get worse. So I cheered up and things got worse."
By k6whp · #140239 ·
Re: Cheap and simple OXCOs upgrades on ebay
As Matt says, I shouldn¡¯t engage, but that rarely stops me. This is one of those uncommon arguments where everybody has at least one good point. ? The original TimePod 5330A was introduced in
By John Miles · #140238 ·
Re: HP 5315A With Destroyed Gate Pot and "frozen" Frozen Knob
For the screw (it's a bit brutal) - try forcing a Torx key into the rounded hole. For the manual, try Didder's siteManuals - KO4BB | | | | Manuals - KO4BB test equipment manuals | | |
By dbztuzujdhgtrjzthxh · #140237 ·
HP 5315A With Destroyed Gate Pot and "frozen" Frozen Knob
Good evening. Acquired a clean and decent HP 5315A that needs some work and would appreciate advise. Per below.. (1) I need to remove the front panel but have a knob with one set screw frozen and
By k6whp · #140236 ·
Photo Notifications #photo-notice
Sergey Kubushyn <ksi@...> added the photo album HP 11667A -- RLC version, inside ( /g/HP-Agilent-Keysight-equipment/album?id=290922 ) : This is what's inside the RLC D-1814,
By Group Notification <noreply@...> · #140235 ·
4145A and 16058A - Repair, Upgrade, and Miscellaneous
Hello, As mentioned in another post, I purchased one of these instruments in status "for parts/repair". Here is a summary of all the issues I encountered and the repair/upgrade work I did. Sorry for
By Wolfgang Schraml · #140234 ·
Re: Another 3GHz 53132-68003 Chanel 3 option design for the 53131A and 53132A
Ok, so the latest PCB's arrived. This design is using the same prescaler chip as the HP design, with the same prescaler bias network. I think I'll have to order a couple more parts, pending a raid of
By Jared Cabot · #140233 ·
Re: Some 3458A questions
Roy, And this may need to become a sidebar, btw. I am not on the esoteric side of knowledge on this (not a "pro"). To me, in a nutshell, it seems reasonable to expect a reference to
By Radu Bogdan Dicher · #140232 ·
Re: Some 3458A questions
The link targets are HTML files that contain links to the actual PDFs. Follow them as intended, and you'll get the PDF handed to your browser. Save it from there. I've downloaded hundreds of
By Dave McGuire · #140231 ·
Re: Some 3458A questions
It's not just me then. Yes, you have to give an email first. I find that the Keysight files often download as a short HTML file, despite them saying they are pdf... After trying various things, the
By Julian · #140230 ·
Re: Some 3458A questions
Be careful, the problem with cows is you always know where they've been. Harvey
By Harvey White · #140229 ·
Re: Some 3458A questions
Hi Radu: If you are so inclined, and have a chance, please explain the 'debate' (I did read some posts by you and Reg, on EEVblog) What does the pro side claim? What does the con side claim" I suspect
By Roy Thistle · #140228 ·
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