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Re: IPA type for 3.5mm connector cleaning
The 91% isopropyl at my CVS has a bitterant added to it to prevent people from drinking it. It leaves a white residue behind. Since discovering that, I use only 99% isopropyl. Try asking the
By Steve Byan · #150146 ·
Re: IPA type for 3.5mm connector cleaning
I bet there's a story behind that knowledge, maybe one that can only be told with the passing of the years..... Steve Hendrix
By Steve Hendrix · #150145 ·
Re: IPA type for 3.5mm connector cleaning
Oh. Like separating sugar from gasoline by adding water, agitating and siphoning off the walter/sugar solution. I hadn't thought of that. Cool. Thanks. DaveD KC0WJN [email protected]> wrote:
By Dave Daniel · #150144 ·
Re: HP 8670B amplifier - does it ring a bell with anyone?
OK, very sorry I still don't have photo(s) to post. I expect to be where the unit is (a distance away) next weekend, I'll get photo(s) and post those then. In the meantime thanks so much for the
By David Feldman · #150143 ·
Re: IPA type for 3.5mm connector cleaning
My simple minded approach: IPA can be purified using a salting out process - because salt is not soluable in IPA but is soluable in water. I dont know which process is actually used. But because I
By Roger Henderson · #150142 ·
Re: IPA type for 3.5mm connector clean ing
Some hardware stores also sell 99% IPA. For electronics I find 91% or higher has the best cleaning action. Doug
By Doug Reed · #150141 ·
Re: IPA type for 3.5mm connector cleaning
AFAIK, the difference between IPA solutions of different concentrations is the amount of water in them. IPA is naturally hydroscopic and will absorb water over time. For lab purposes, I use the
By Dave Daniel · #150140 ·
IPA type for 3.5mm connector cleaning
Hi, I am trying to clean the connector threads and surface of my 3.5mm VNA Calibration kits. Keysight manual says use IPA but it doesn't say what kind of IPA. My local CVS has 70% and 91%, amazon has
By Calvin Guan · #150139 ·
Re: Test Set Program Development Tool DEV_PL on 3.5" floppy
Yes Roy it is a nice gadget and there are equivalents for other media as well. If you have all those machines and you still have the disks that go with them I suggest you get one and add images of
By evan foss · #150138 ·
Re: 5345A electronic counter *restoration adventure*
Peter, if you want to share with community the whole manual, it would be great. Thanks a lot
By RubenRubio · #150137 ·
Re: 5345A electronic counter *restoration adventure*
Thank you so much Peter, really apreciate. Cheers Ed: as far as I know, 10811A was the replacemente of the 10544A, so I found normal it's presence in later serials of the unit.
By RubenRubio · #150136 ·
Re: Test Set Program Development Tool DEV_PL on 3.5" floppy
There's a newer version of lifutils here that's being maintained (last update Dec 2024): https://github.com/bug400/lifutils/releases In addition to Linux, the developer has also included versions
By Mark Litwack · #150135 ·
Re: HP 8670B amplifier - does it ring a bell with anyone?
This is just a hail-Maty, check out the1985 - RF & Phase Noise Measurement Seminar (124 pages)? at http://hparchive.com/seminar_notes/HP_PN_seminar.pdf The document mentions 8672 / 8673 as products
By Bert · #150134 ·
Agilent 8753ES P? and up arrow on left side of display ?
I found an 8753ES for sale in S11 ? It shows on the display eft side an up arrow and below that as P? ?Is this an indication that the source is probably bad? ?I can't get anymore
By Hank WD5JFR · #150133 ·
HP 8563E Shows Signal Present at 100MHz and below without an Input
Hi all, I have an HP 8563E which is showing signal present at close to 0dB at 100MHz and below without a Input connected. Above 100MHz the unit appears to be working as expected. Any thoughts on
By Chris J · #150132 ·
Re: Hp8660c repair, extender cards.needed.
IIRC, the kits for the different 8660 signal source models (A-D) are slightly different, with different HP part numbers. DaveD KC0WJN [email protected]> wrote:
By Dave Daniel · #150131 ·
Re: Keysight Forum
There are these perennial concerns about them cold shouldering people using legacy hardware. I remember the last time this went around they did a whole charm offensive
By evan foss · #150130 ·
Re: Hp8660c repair, extender cards.needed.
If I could borrow such a setup I would repair and calibrate my 8660C and multiple plugins. I’d like to do that before selling/trading the setup as I now use a 8643A. The cool thing with the 8660C is
By Peter Gottlieb · #150129 ·
Re: Keysight Forum
I put up a question to a support page about an obsolete data acquisition system and got definitive attention by an engineer who knew the system and could help me. Maybe asking directly for support is
By Peter Gottlieb · #150128 ·
Keysight Forum
Hello - Does anyone on this group use the Keysight Forum at https://community.keysight.com/forums/s/ ? I have had poor luck with it for the last few years. I have had no responses to inquiries about
By WReeve · #150127 ·