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- HP-Agilent-Keysight-Equipment
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Re: Need adaptors for 8405A probes
Rasputin Novgorod
As for continuing to look for the adaptor, I haveTry: eBay Item number: 3829178511 __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - Send 10MB messages! |
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Re: Need adaptors for 8405A probes
jocjo_john
Hi, Arthur -
I forgot to mention that I am a klutz when it comes to mechanical things and I am not very imaginative. This sort of thing may be easy for you, but it presents a challenge to me. I looked at this approach for quite a while. I can't figure out how to make the probe tip get a good connection to the BNC T connector as the connector has a bigger hole than the probe tip diameter. Also, the barrell of the probe does not go inside the BNC connector even when the probe tip is completely inserted into the BNC hole. Would it help if I upload a photo and dimensional drawing? As for continuing to look for the adaptor, I have had a "saved search" for these on Ebay for over a month and no hits. I would have thought something would have shown up by now. But maybe not. Thanks for your help. John --- In hp_agilent_equipment@..., Arthur Shulman <dentist@n...> wrote: Use a BNC 'T' as the tap in a 50 ohm transmission line. Use a smalltake up the slack between the probe barrel & the inner diameter ofthe 'T'. the finger stock may be left in place in the 'T' after trimming. thefingers will retain it.much less than $150!with a directionaltiny pointy point coming out. The pointy point is about .03 in #11064A. Icoupler or into a transmission line. That would require a way of --found the BNC adaptor for sale for $150. But that's about what IADVERTISEMENT Yahoo! Groups Links |
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Re: Need adaptors for 8405A probes
Arthur Shulman
Use a BNC 'T' as the tap in a 50 ohm transmission line. Use a small cut-off
piece of suitably small phosphor-bronze finger stock to take up the slack
between the probe barrel & the inner diameter of the 'T'. the finger
stock may be left in place in the 'T' after trimming. the fingers will
retain it.
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Keep lookiing for an adapter if you wish. They can be found for much less than $150! Arthur Shulman ? jocjo_john wrote: ?I've got an 8405A Vector Voltmeter. The probes have a barrell with a |
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Need adaptors for 8405A probes
jocjo_john
I've got an 8405A Vector Voltmeter. The probes have a barrell with a
tiny pointy point coming out. The pointy point is about .03 in diameter and the barrell is about .288 diameter. It would be nice to be able to connect these probes to a directional coupler or into a transmission line. That would require a way of converting the probe to a BNC connector. Aha! I see that HP had a BNC adaptor #10218A for that purpose. They also had a kit #11064A. I found the BNC adaptor for sale for $150. But that's about what I paid for the whole instrument! What do others do to be able to connect these probes to real circuits? Thanks for any suggestions. John |
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Re: Rules, What Rules? was: Manual copyright
Hi Stefan:
The Tek mailing list has had a number of posts on this subject, but I think the big picture is that a patent or copyright gives the holder the right to sue a violator for damages. Damages being defined as lost revenue and/or punitive. So as a practical matter what company is going to spend their valuable corporate attorney fees on a case where they can not even recover their expenses? I don't think it's a case where an individual has copied one manual. But if someone setup a business based on copying all of a companies manuals and underselling that company, then you might expect to be spending some time in court. Just my 2???, Brooke Clarke, N6GCE (no legal training, just common cents) -- Date: Thu, 22 Jul 2004 11:48:32 -0000 From: "Stefan Heinzmann" <stefan_heinzmann@...> Subject: Manual copyright Hi all, I have scanned the manual of the HP339A and made a PDF file. I would like to upload it to BAMA if that's ok. The manual is of course copyrighted by HP (1984), but the instrument is discontinued, and as far as I know the manual isn't sold by HP anymore. Tektronix allow putting up the manual for download in such a case, but I don't know about HP/Agilent. Does anyone know the rules? Cheers Stefan |
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Manual copyright
Hi all,
I have scanned the manual of the HP339A and made a PDF file. I would like to upload it to BAMA if that's ok. The manual is of course copyrighted by HP (1984), but the instrument is discontinued, and as far as I know the manual isn't sold by HP anymore. Tektronix allow putting up the manual for download in such a case, but I don't know about HP/Agilent. Does anyone know the rules? Cheers Stefan |
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Re: HP 8566A / B differences
John Miles
开云体育Further to this, I just spent some time comparing a
8566A catalog excerpt (presumably from sometime before 1984, when the 8566B came
out) to the specs for the 8566B as of 1996.? The RF specs I looked at
are?100% identical.? These include:
?
-
Frequency and amplitude range
-
Residual FM
-
Drift
-
Noise sidebands
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Scale fidelity
-
Calibration uncertainty
-
Frequency response uncertainty (flatness), both bandwise and
cumulative
-
Third-order IMD (given as TOI)
-
Second-harmonic distortion
-
Image, LO-harmonic, and out-of-band responses
-
Displayed average noise level
?
Not
compared due to missing specs from 1996 catalog:
?
- LO
emission (no reason to think this is any different)
?
So it
appears that the only differences between the 8566A and 8566B are related to
GPIB control/programmability differences.? Although both analyzers can
store and recall 6 setup configurations, the 8566A catalog listing makes no
reference to the 8566B's 16K of user RAM for stored programs and trace
data.? So that may be the only real difference between the two.... a
difference that would matter to very few users in the Amateur/hobbyist
market.?? Automated test programs usually run on a separate GPIB host,
so unless I'm overlooking something, it doesn't matter if the analyzer can
execute programs by itself.
?
Certainly there appears to be no reason for the
prejudice implied by some sellers when they refer to their 8566Bs as "true B"
units, as opposed to those upgraded from the -A model.? From all I can
tell, an upgraded 8566A would be indistinguishable from the
8566B.
?
--
john KE5FX
? -----Original Message-----
From: John Miles [mailto:jmiles@...] Sent: Tuesday, July 20, 2004 11:35 PM To: hp_agilent_equipment@... Subject: RE: [hp_agilent_equipment] HP 8566A / B differences
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Re: HP 8566A / B differences
Hi John:
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The 8566 is one of the best spectrum analyzers of the old style I've used. For some info about a system I designed and built with an 8566B see: The disks that came with the 8566 are in a non PC format (the PC was to be introductd years later). They can be read and copied using HP Rocky Mountain Basic workstations that are 68000 based, or maybe by one of the PC clone HP Basic programs, see: Computer languages for instrument control HP-IB Controllers The newer SAs use DSP instead of physical IF filters and can achieve a tremendous improvement in sweep time for a given RBW as well as offering much narrower IF bandwidth. For more see: - HP/Aglient 4395A combination Network, Spectrum & Impedance analyzer. Have Fun, Brooke Clarke, N6GCE -- Date: Tue, 20 Jul 2004 17:20:03 -0700 |
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Re: HP 8566A / B differences
John Miles
开云体育Hi,
Mike --
?
I only
had the chance to spend a few days with the 8566B, but I was definitely
impressed.? It is about 12 dB 'hotter' at 10 GHz than the Tek 494AP I
normally use, and the 1-3-10?resolution bandwidth scales have a real
usability advantage over?the Tek's decade steps.? The display quality
is also light-years ahead of Tek, in that they implemented a serious
high-resolution?graphics display instead of using a
warmed-over?oscilloscope?interface.? On the other hand, the Tek's
control panel is a bit?nicer to use due to its 3-knob design, and its
signal-counter feature has come in handy many times.? I ended up keeping
the Tek over the 8566B for those reasons, and because I'm just more familiar
with it and have limited space in my equipment rack.? It was a close call;
the 8566B is one hell of a nice?piece of gear and I imagine the -A model is
no different in that respect.
?
I did
have a chance to add 8566B support to my GPIB plotter emulator app, and one way
you (and other HP analyzer owners) could help is by seeing if it works on your
8566A as well.? This is at
-- the easy way to test it is to unzip the files and run "7470 18" to see if it
can grab a plot from the analyzer at GPIB address 18, or wherever you've
configured it.? This *should* work on an 8566A or an 8568, but again,
nobody has tried it yet.
?
My
understanding is that the 8566B used a 68000 CPU (pretty exotic stuff in those
days; they were right there on the leading edge along with Apple's early Lisa
and Mac machines), while the 8566A used a different, more proprietary
controller.? But I don't know if that translated into any real
functionality differences, or if the RF performance is any difference.? I
don't know if the CRT is any different, or even if my 85662A display section had
a "new"-style CRT or not.? This was the first one I've
seen.
?
A GPIB
programming manual for the 8566A would be handy, if you have that in .PDF
format.? It would tell me a lot about what differences there are between
the two models.? Agilent's site lets you download
the 8566B manual, but not the 8566A manual, as far as I can tell.?
?
--
john KE5FX
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Re: HP 8566A / B differences
Dear John,
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? I was particularly interested in this question since I've been shopping for an HP 8566B for some time now.? I came to the conclusion that I simply cannot justify the expense of this fine spectrum analyzer for my non-profit ham and experimentation? use.? I did however, find an excellent buy on an HP 8566A which I just received yesterday.? It is was certified with a NIST cal prior to sending, so I have reason to believe it to be in fine working condition. ?? I had accumulated manuals for the HP 8566B, and verification software on both 3.5" and? 5.5" floppies? (if you have the HP computer interface to use them - I can copy the 3.5" for you).? I've been working through the "getting familiar with.." sections of the manual for my "new" unit and am totally amazed with the ease of use of this fine piece of intstumentation. ??? Now, coming around to MY interest is your question.. I'd like to know what, if any, differences are there between these two machines besides some expanded HP-IB commands?? I know that around 1984 or so there was a newer CRT used in both units (was there was there a production overlap?) and I know that there was an A => B Mod Kit that included a new board which replaced an older board that had to be removed.? Other than that it appears that the basic machine functions and specs was the same.? Are you able to comment on this? ?? Is there any way I can help you?? I know NOTHING about HP-IB other than a little I've read. 73, Mike DiGirolamo, W4XN Charlottesville, VA 22901 ------------------------------- At 08:20 PM 07/20/2004, you wrote: ? |
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HP 8920B feet
Richie Thompson
开云体育Hi guys, I am currently looking for two sets of REAR protective bars (rear feet) for the HP8920B. Please email me off list at radiorick@... Thank you, Rick T |
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HP8569B knobs wanted
Richie Thompson
开云体育?Hi guys, I am currently looking for some HP8569B knobs. I understand the same knob is used on other units too. ? Frequency Span / Div and Resolution BW knobs ? Reference Level and Input ATT db knobs ? Please email me radiorick@mchsi,.com and let me know what and you have how many. Thanks Rick T |
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HP 8566A / B differences
John Miles
Can anyone describe the exact differences (specs, features) between the
8566A and 8566B analyzers? I'm trying to determine the degree of GPIB software compatibility between the two. I've recently had my hands on an 8566B, but have no access to an 8566A for testing. Thanks! -- john KE5FX |
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HP165x Inverse Assembler toolkit and 1651B pods
Philip Pemberton
Hi,
Has anyone managed to get the IAL Downloader included in the HP 165x logic analyser inverse-assembler kit to work? I've tried it on three different machines, and IALDOWN keeps dying with an "Integer divide by zero" error before downloading the IA to the analyser. Also, does anyone know of a source of grabber probes, pods and pod-to-analyser cables for the 1651B? Thanks. -- Phil. | Acorn Risc PC600 Mk3, SA202, 64MB, 6GB, philpem@... | ViewFinder, 10BaseT Ethernet, 2-slice, | 48xCD, ARCINv6c IDE, SCSI McBorgs - Over one billion assimilated! |
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Re: HP5100/5110 Synthesiser set
Robert Fincher
Hi Tom,
Thanks for the suggestions. I'll give them a try, and keep my fingers crossed. Cheers Rob --- "Thomas P. Gootee" <tomg@...> wrote: --------------------------------- Robert, You might want to periodically search what's available at . [Oh. It looks like you're in Australia. Maybe you could get someone to pick it up and ship it to you, if you find one at one of the surplus sales above.] You could also put an "autosearch" on www.ebay.com, so you'd automatically be emailed if anything matching your search came up for auction. Just go to "My Ebay" then "Favorites". You could also ask in the sci.electronics.repair newsgroup, and maybe even some of the rec.radio.amateur.xxxxx groups, at . Good luck! Regards, Tom Gootee Date: Fri, 16 Jul 2004 16:34:50 +1000 (EST) From: Robert Fincher <robfincher2001@...> Subject: HP5100/5110 Synthesiser set Hello everyone, About 6 weeks ago I posted an enquiry for an HP5100B synthesiser driver to mate with a 5100 main unit. Unfortunately no-one replied. On reflection, who would want to part with just half of a 5100/5110 pair? So now that I have the 5100 part of the synth working well, even if only producing a few frequencies, I guess I'm hooked and want to own a complete set. so if anyone is wanting to dispose of a 5100 synthesiser AND a 5110 driver, I would love to hear from you.BTW the pair do not have to be fully operational, merely refurbishable. Thanks in anticipation! Rob Fincher VK3BRF Find local movie times and trailers on Yahoo! Movies. ________________________________________________________________________ ________________________________________________________________________ ------------------------------------------------------------------------ Yahoo! Groups Links ------------------------------------------------------------------------ Yahoo! Groups Sponsor ADVERTISEMENT --------------------------------- Yahoo! Groups Links To visit your group on the web, go to: To unsubscribe from this group, send an email to: hp_agilent_equipment-unsubscribe@... Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. ATTACHMENT part 2 application/ms-tnef Find local movie times and trailers on Yahoo! Movies. |
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Re: HP5100/5110 Synthesiser set
Robert,
You might want to periodically search what's available at . [Oh. It looks like you're in Australia. Maybe you could get someone to pick it up and ship it to you, if you find one at one of the surplus sales above.] You could also put an "autosearch" on www.ebay.com, so you'd automatically be emailed if anything matching your search came up for auction. Just go to "My Ebay" then "Favorites". You could also ask in the sci.electronics.repair newsgroup, and maybe even some of the rec.radio.amateur.xxxxx groups, at . Good luck! Regards, Tom Gootee Date: Fri, 16 Jul 2004 16:34:50 +1000 (EST) From: Robert Fincher <robfincher2001@...> Subject: HP5100/5110 Synthesiser set Hello everyone, About 6 weeks ago I posted an enquiry for an HP5100B synthesiser driver to mate with a 5100 main unit. Unfortunately no-one replied. On reflection, who would want to part with just half of a 5100/5110 pair? So now that I have the 5100 part of the synth working well, even if only producing a few frequencies, I guess I'm hooked and want to own a complete set. so if anyone is wanting to dispose of a 5100 synthesiser AND a 5110 driver, I would love to hear from you.BTW the pair do not have to be fully operational, merely refurbishable. Thanks in anticipation! Rob Fincher VK3BRF Find local movie times and trailers on Yahoo! Movies. ________________________________________________________________________ ________________________________________________________________________ ------------------------------------------------------------------------ Yahoo! Groups Links ------------------------------------------------------------------------ |
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400D transient response
开云体育I’ve been repairing a 400D AC voltmeter that followed me home from a hamfest.? I think I have it working, but I have lingering suspicion about the stability of the 4-tube “op-amp”.? I don’t quite have the math anymore to do a pole-zero analysis with any confidence I’d get it right, so I’d like your wisdom and experience. If I put it on the 0.3V range and give it a 1.5V step, the Output terminal presents a damped sine wave.? Initial amplitude is 0.5V (note: I’m a bit hazy on this) and frequency is about 4Hz.? It damps out in about 6 cycles or 1.5 seconds. Refer to the schematic in the 400D manual, available for free at BAMA.? The only low-frequency breakpoints I think are of interest are: 1.????? V3 cathode, (Zk + R122) * C105A.? R122=2.7 ohms, C105=1500uF. I don’t remember how to calculate cathode impedance Zk so all I can say is that this one’s a pole at something much less than 40Hz.? For anyone who’s got the data, the tube is a 6CB6 at about 10mA cathode current and about 120V on the screen. 2.????? V4 cathode, same thing. 3.????? V3-V4 coupling, C24 * (R36+R37).? C24=2.7nF, R36=3.3M, R37=2.7M. This is a zero at around 10Hz. 4.????? V4-V5 coupling, C26 * (R46+R118).? C26=20nF, R46=680k, R118=1M variable. This is a pole somewhere between 5Hz and 12Hz.? R118 is the LF gain adjustment. It works counter intuitively: as you decrease R, yes the open-loop gain falls, but this is overshadowed by the increasingly leading phase which reduces the feedback. 5.????? V5 plate supply, C30B=20uF, R51=3300. This is a zero at 2.5Hz. 6.????? V5 output, R52=10k, C32/33=4uF. This is a pole at 3.5Hz. All the important resistors are in spec except the 2.7ohm ones in series with the cathode bypass caps (they’re about 30% high), but I figure they’re swamped by Zk.? C105A has increased to 2000uF.? None of the paper caps are leaky. All the DC voltages are near spec. Is it possible that C30B has increased, moving its zero too far away from the C32/33 pole?? Or maybe the C105A pole is reinforcing the C32/33 pole? Comments?? Insight?? Clue? J Regards, Dave Wise |
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HP5100/5110 Synthesiser set
Robert Fincher
Hello everyone,
About 6 weeks ago I posted an enquiry for an HP5100B synthesiser driver to mate with a 5100 main unit. Unfortunately no-one replied. On reflection, who would want to part with just half of a 5100/5110 pair? So now that I have the 5100 part of the synth working well, even if only producing a few frequencies, I guess I'm hooked and want to own a complete set. so if anyone is wanting to dispose of a 5100 synthesiser AND a 5110 driver, I would love to hear from you.BTW the pair do not have to be fully operational, merely refurbishable. Thanks in anticipation! Rob Fincher VK3BRF Find local movie times and trailers on Yahoo! Movies. |
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Re: Stubborn Allen Screws
开云体育In a message dated 7/14/2004 2:10:55 AM Eastern Standard Time, mpokorni2000@... writes:
Before using any Allen wrenches, inspect tip of the wrench. Sometimes, those ?
Once you have managed to get the wrench to bite, heating the screw and wrench with a soldering iron or a match while turning?may help the screw loosen before reaching the yield point of the wrench again.
?
Mike Csontos |
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Re: Stubborn Allen Screws
Ahlbrecht, Andreas
开云体育Mike, since you would most probably need new screws afterwards anyway, here
Just glue your Allen wrench into the screw with superglue (cyanacrylate (sp?)).
However, if it doesn't work satisfactorily I'm not going to send you
Sincerely,
Dear Colleagues, ????? I need some help and or tips on how to remove frozen Allen
????? The typical scenario happens when trying to remove a stubborn
??? Any comments and/or suggestions are welcome. Regards, Mike DiGirolamo, W4XN
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Mike D.
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