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E4407B ESA spectrum analyzer starting up as wrong type
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Hi all I got the E4407B to boot and it is a E4407B with the needed hardware. But it boots as a 3GHz model. So where is it stored what type it is supposed to be. It does not sweep even as the 3GHz version.?
Anyone know how get it back to E4407B. the Start screen says it is an E4407B but the highest frequency possible 3GHz
best regards Peter OZ1LPR
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Re: Anyone able to do GC or GC-MS on Hp ThinkJet Black ink ( for the Hp ThinkJet 2225 printer; Hp 9226a Or Hp 51604a ink cartridges ) ?
Its not a project I would take on personally but the compounds are relatively safe.? 2-pyrrolidone can have some health effects.? Most cyclic amides do.? And apparently it makes up 30% of the ink.??
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It is fun to discuss the analytical chemistry aspect of it though.? And I don't mind helping someone like Rick do research.? We've already discussed our backgrounds in the field.? He understands the safety involved.
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-Frank
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Re: 8665B noisy signal & Cal Errors
Hi All, quick update. Thanks to the friendly guidance of Adam MacDonald, I went ahead and checked the power supply rails for noise. I did find noise on the 15v and 38v rails (15v rail shown below). Not only did I find noise, but it was not at a stable frequency, it varied +/- 10 or 15 kHz, similar to what I was seeing on the spectrum analyzer. So I feel pretty comfortable that the source of the noise has been isolated. There area also some issues with low voltages on the 38V line I need to look at.?
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Next steps will be to pull the PS, which seems to be quite a task in itself. But it's great to have progress!
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Re: Boonton 92BD Troubleshooting
It will help to remind any Boonton rrelated posts that it exists. It is better to post there, rather in a very active goup where many won't notice an off topic post. On Sat, Oct 5, 2024 at 7:11?AM Chuck Harris via <cfharris=[email protected]> wrote: As the owner of the Boonton list, I concur that the list |
Re: Boonton 92BD Troubleshooting
Besides having owned several Boonton instruments, the name "Boonton" has special meaning to me because that is where I was born.
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DaveD KC0WJN Thanks for all the fish. ============================== All spelling mistakes are the responsibilty of the reader (Rick Renz, STK, ca. 1994) ============================== On Oct 5, 2024, at 07:11, Chuck Harris via groups.io <cfharris@...> wrote: |
Re: Boonton 92BD Troubleshooting
As the owner of the Boonton list, I concur that the list
is more about the Boonton name than about which of the many companies made the equipment. The list was left in a frozen state when my partner in its creation, John Forster died. I finally got his estate lawyers to release its control back to me, so it is operational. I fear that it spent too much time frozen to ever recover, but it is worth a try. -Chuck Harris On Fri, 4 Oct 2024 15:57:43 -0700 "Richard Knoppow" <dickburk@...> wrote: FWIW, I was one of those who promoted the Boonton list. There |
Re: Anyone able to do GC or GC-MS on Hp ThinkJet Black ink ( for the Hp ThinkJet 2225 printer; Hp 9226a Or Hp 51604a ink cartridges ) ?
A lifetime ago, I took a course called: "Micro, Semimicro Qualitative
Analysis." We routinely took 10ml of some unknown, and applying various reagents, isolated what was in it. Finding out which acid salt should be relatively easy for someone with a modestly equipped chemistry lab, and a little knowledge. From my experience with e-scrapping, I learned a few things about HP inkjet printers. The first is, given time, they will leak out a cartridge's worth of ink all over the surface below the printer. I have a permanent reminder of that on one of my granite counter tops. You might want to re-think your desire to monkey around with refilling cartridges for printers that already do a poor job of containing their allotment of ink. The second is, the leaked ink seems to be corrosive. Abused printers (kept in all sorts of orientations, thrown into scrap pile...) will invariably leak ink... everywhere. The ink tends to leave copper covered with green corrosion. The third is, new cartridges are easily found. The prices were never reasonable, and that fact remains. -Chuck Harris On Fri, 04 Oct 2024 17:16:46 -0700 "Frank Mashockie" <fmashockie@...> wrote: It could be that Food Black 2 is used but what they have made |
Re: Boonton 92BD Troubleshooting
Not the BD version, but these meters have an analog output for data logging or SATE systems. Rather than assume the digital section is OK, feed a test signal into the probe and see if the analog level changes. Always split a problem in half, rather than randomly change parts.
Use a well calibrated 50 ohm signal generator.. That 'digital' board also cottains the A/D converter. The chopper circuit hasa high failure rate. It can be upgraded to a modern, digital version lke the 9200 series. It is in the 9200 manuals. The 42 series power meters use the same circitry, but are calibrated for a fixed 50 ohm input. The same goes for the 4200/9200 series. |
Re: Boonton 92BD Troubleshooting
Boonton Electronics (not related to HP) that made this meter are still going, as part of the Wireless Telecom Group, Inc.
There were at least 6 companies from the Boonton in New Jersey, Boonton Radio Corp (became part of HP), Boonton Electronics, Measurements Corp, Ferris, Ballantine, RFL, even the HP archive website has a page about some and manuals; http://hparchive.com/boonton-nj
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David
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On Fri, Oct 4, 2024 at 10:57 PM, Richard Knoppow wrote:
FWIW, I was one of those who promoted the Boonton list. There were |
Re: Anyone able to do GC or GC-MS on Hp ThinkJet Black ink ( for the Hp ThinkJet 2225 printer; Hp 9226a Or Hp 51604a ink cartridges ) ?
Interesting... Wonder why they didn't put a CAS # by it then.? I guess because they labeled it non-hazardous? 1,6-hexadiol?seems more likely.? Pyrrolidines can be pretty nasty. When they say acid salt #3 they?are referring to how the dye is neutralized.? So for example, it is very common that dyes like this are neutralized with tetrasodium.? It could be that or something else. If you have a DOI # for that article, I might be able to find it for you. -Frank On Sat, Oct 5, 2024 at 12:22?AM gren via <hrgerson=[email protected]> wrote:
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Re: Anyone able to do GC or GC-MS on Hp ThinkJet Black ink ( for the Hp ThinkJet 2225 printer; Hp 9226a Or Hp 51604a ink cartridges ) ?
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These have been studied & published... years ago, and the field is evolving.
This evening's bedtime reading on ink jet inks? via GC-MS, TLC, high performance liquid chromatography, LC-MS, etc.
.... at some point the recipe may appear -- Might not have to do much homework testing,? if already in the literature.
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A few references state that Hp used:
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N-(2-Hydroxyethyl)-2-pyrrolido
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1,6-hexanediol (HP)
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in their Hp? Ink Jet? inks...
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The Acid Salt 3 is the question....? ?
Possible preservatives to prevent oxidation & bacterial growth, etc.
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Can't seem to get my hands on a .pdf? of what seems to be a good reference, age appropriate:
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Aginsky, V. N. (1996). Dating and Characterizing Writing, Stamp Pad and Jet Printer Inks by Gas Chromatography / Mass ?Spectrometry.? International ?Journal of Forensic Document Examiners, Vol. 2, No. 2, pp.103-115
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Re: Anyone able to do GC or GC-MS on Hp ThinkJet Black ink ( for the Hp ThinkJet 2225 printer; Hp 9226a Or Hp 51604a ink cartridges ) ?
Also, while the dye is Food Black 2, its salt form is not known.? HP isn't sharing that.? I'm not a printer ink maker, but different types of salts can have drastic implications on the characteristics of the organic they are complexed with.? I'm more familiar with this from a pharma standpoint - drugs with the same API can have very different efficacies based on their salt form. On Fri, Oct 4, 2024 at 11:48?PM Frank Masciocchi <fmashockie@...> wrote:
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Re: Anyone able to do GC or GC-MS on Hp ThinkJet Black ink ( for the Hp ThinkJet 2225 printer; Hp 9226a Or Hp 51604a ink cartridges ) ?
Gotcha.? Very curious what that 'alkyldiol' is listed on the most recent MSDS I shared.? It doesn't have a CAS # and it says proprietary.? Could be a nonionic surfactant like Tween.?? Keep us posted on this project! I'd be interested/curious to know how far you get with the tools you have at home! -Frank?? On Fri, Oct 4, 2024 at 10:50?PM gren via <hrgerson=[email protected]> wrote:
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Re: Anyone able to do GC or GC-MS on Hp ThinkJet Black ink ( for the Hp ThinkJet 2225 printer; Hp 9226a Or Hp 51604a ink cartridges ) ?
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The dye is easy, Food Black 2 ,
Other questions are the possible use of a Tween, or other Surfactant? or/& something else, possibly Glycerol ?
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For 1st tests, a test ink does not have to be perfect, just hoping it will work reasonably well, and be paper fast.
Just don't want to gum up the only empty ThinkJet cartridge that I have, ... would quickly put an end to testing in my 2225 printer, lol.
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Thus, more examples of MSDS sheets ,
?? from the Hp ThinkJet Cartridge ? boxes? ( an inserted slip of paper ), would help,
if anyone can post additional .pdf's of these. |
Re: Anyone able to do GC or GC-MS on Hp ThinkJet Black ink ( for the Hp ThinkJet 2225 printer; Hp 9226a Or Hp 51604a ink cartridges ) ?
A PerkinElmer Elan 6000 - that thing must weigh a ton!? Which Shimadzu unit do you have? Is this for a home lab!?? If so that it is awesome. I hope you're not using H2 for carrier gas lol.?? Sephadex G-25 for affinity chromatography I assume?? G-10 is for small molecule.? I guess it depends on what you're interested in.? Are you looking for more residual solvents? Or understanding more about the dye and/or additional additives? GC would require a midpolar column.? Something like Agilent's VF-35ms.? Good for resolving aromatics with substituted?polar groups.? Still think it is unlikely you'd be able to find a method that would resolve all components of the dye on GC-MS considering the molar mass of the dye. On Fri, Oct 4, 2024 at 9:15?PM gren via <hrgerson=[email protected]> wrote:
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Re: Anyone able to do GC or GC-MS on Hp ThinkJet Black ink ( for the Hp ThinkJet 2225 printer; Hp 9226a Or Hp 51604a ink cartridges ) ?
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Seem to recall from the Hp Patents, that Hp used the Food Black 2 dye made by Cabot, discussed previously:?
/g/HP-Agilent-Keysight-equipment/message/147612 ?
perhaps the "Clover" formulation is the same.
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The Acid Salt 3 may not be such a mystery; probably simple,? as a 1st guess.
https://en.wikipedia.org/wiki/Acid_salt
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Anyway, need to check the pH, and do a titration of the Hp printer dye,? just for fun.
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Re: Anyone able to do GC or GC-MS on Hp ThinkJet Black ink ( for the Hp ThinkJet 2225 printer; Hp 9226a Or Hp 51604a ink cartridges ) ?
Clover is the supplier.? It lists the product name on a page I didn't share initially (attached below).? However, it is interesting they omitted the dye.
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But Roy makes a good point about older datasheets possibly not including all compounds of interest.? Here is one from 2013.? This one includes 'alkyldiol' which they have listed as proprietary.??
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This one also has Food Black 2 listed.? Acid salt #3 indicates the dye is neutralized as a salt.? But which salt they aren't disclosing. Link is below.
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chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://images10.newegg.com/UploadFilesForNewegg/itemintelligence/HP/sp_51604arevb_ca_eng_v091400297325342.pdf |
Re: Anyone able to do GC or GC-MS on Hp ThinkJet Black ink ( for the Hp ThinkJet 2225 printer; Hp 9226a Or Hp 51604a ink cartridges ) ?
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hmm,? not certain what the? 2015? "Clover"? Ink? data?? is from,?? or for... ?
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For now, ... would be focusing only on the plain Black inks used? only? for the Hp ThinkJet 2225 printer,
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--? because the physics and thermal hydrodynamics of the Hp 2225 ThinkJet printer, as eloquently described in the Hp Journal article,
are tailored to these particular Inks and their cartridge, temperature,? & to a lesser extent, expulsion volume, and velocity. ?
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Re: Anyone able to do GC or GC-MS on Hp ThinkJet Black ink ( for the Hp ThinkJet 2225 printer; Hp 9226a Or Hp 51604a ink cartridges ) ?
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hi Roy,
Perfect, thank you for the MSDS !
?That adds a bit more info and reading the Patents has also illuminated.
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Yes, likely other versions of the MSDS or Materials Safety sheet inserted in the Ink Jet box might have other, additional info,
they get updated as the various laws change, so Engineering Production Due Diligence? practices would follow.
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rick |
Re: Anyone able to do GC or GC-MS on Hp ThinkJet Black ink ( for the Hp ThinkJet 2225 printer; Hp 9226a Or Hp 51604a ink cartridges ) ?
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Don't think I need an outside lab, .... but would be interested in discuss with those actually having analytical equipment.
(? I still need a few minor parts for my pe Elan 6000,? so that is not ready yet,? lol.? And yes, I would need a different column for the Shimadzu, sigh. )
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But, am betting that this ink issue can be solved more easily:
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My next practical step, after having tried some TLC plates, will be to try one of the inexpensive Sephadex columns,
Will start with either G-10 or G-25, and then possibly proceed forward, with a more specific column. |
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