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CHECK OUT THE WIKI The purpose of the wiki is mainly to allow you to find information on instruments, either from either
- The model number
- The function(s) listed below. Some instruments have multiple functions - for example, the 4195A is a VNA, spectrum analyzer and an impedance analyzer. Therefore the 4195A is listed in multiple categories
Please also check out HPWiki available here:
- Accessory kits - various types
- AC power analyzers - PA2201A and PA2203A
- AC power supplies 6811C, 6812C, 6813C
- Airlines
- Arbitrary waveform generators M8194A
- Amplifiers?493A, 495A?
- Attenuators (optical) 8156A, 8157A, 8158B, 81566A, 81576A,?
- Attenuators (RF) 8494A
- Attenuator set (500 ¦¸) 350C
- Attenuator set (600 ¦¸) 350D
- Attenuator switch driver
- Audio analyzers? 8903A, 8903B, 8903E,? ?
- Base station test sets
- Bit error rate testers (BERTs)
- Cables
- Capacitance meters U1701A, U1701B, 4272A, 4278A, 4279A
- Capacitor Bridge 4270A,
- Capacitor standards 16380A, 16380C,?
- Carrier noise test setsi
- Cesium frequency standards
- Clamp ammeters
- Close field probes
- Crystal Impedance E4915A, E4916A
- Data Acquisition Systems (DAQs)
- DC power analyzers
- DC power supplies 6030A , 6031A , 6032A, 6033A, 6035A, 6131C, 6621A, 6622A, 6623A, 6624A, 6627A, 6255A, 6645A, 6671A, 6672A, 6673A, 6674A, 6675A, 62003A, 62003C, 62003E, 62004A, 62004B, 62004E, 62005A, 62005B, 62005E, 62006A, 62006B, 62006E, 62010A, 62010C, 62010E, 62012A, 62012C, 62012E, 62015A, 62015C, 62015E, 62018A, 62018C, 62018E, 62024A, 62024C, 62024E, 62028A, 62028C, 62028E, 62048A, 62048C, 62048E
- Delay lines
- Detectors
- Device current waveform analyzers
- Digital communications analyzers
- Directional couplers
- Distortion analyzers 330B, 330C, 330D, 331A, 332A, 333A, 334A, 339A, 8903A, 8903B, 8903E,???
- Dynamic measurement DC source
- Electrometers
- Fading simulators
- Femto ammeters
- Filters
- Frequency counters 522B, 5342A 5343A 5352B
- Frequency standards?
- Function Generators ? 3310A,? 8165A,
- GPIB controllers, extenders, cables etc.
- GPS frequency standards
- Harmonic mixers
- High resistance meters 4339B
- High resistance meter fixtures 16008B
- HEV EV Grid Emulators and Test Systems
- In-circuit test systems
- Impedance analyzers 4195A, 4291A, 4291B, 4395A, 4396A, 4396B, 4294A, E4990A, E4991A
- Impedance Analyzer Accessories
- Impedance / Gain Phase analyzer 4194A
- Impedance Meter 4193A,
- Isolators
- LCR meters? U1701A, U1701B, U1731A,? U1731B, U1731C, U1732A, U1732B, U1732C, U1733C, 4191A , 4192A, 4194A, 4195A, E4196A,? 4216A, 4260A, 4261A, 4262A? 4263A, 4263B, 4271B, 4274A, 4275A, 4276A , 4277A, 4284A, 4285A, 4286A, 4287A, 4291A, 4291B, 4294A, 4332A, 4342A, 4395A, 4396A, 4396B, E4980A and E4980AL
- LCR meter calibration devices? 16380A 42030A? 42090A, 42091A and 42100A
- LCR meter accessories
- 2-Terminal BNCs.
- 4-Terminal Pair (BNC connectors)
- Cable extension 16048A, 16048D, 16048E, 16048G, 16048H
- DC current bias accessories 42841A, 42842A, 42842B, 42842C, 42843A
- DC voltage bias accessories 16065A, 16065C,
- Kelvin clips 16089A, 16089B, 16089C,16089E
- Lead Components 16047A,16047B, 16047D, 16047E
- Material 16451B, 16452A
- Probes 42941A
- SMD 16034E, 16034G, 16034H
- 2-port 16096A
- 7 mm (APC7)
- 2-Terminal BNCs.
- LCZ meters? 4276A, 4277A,
- Lightwave clock / data receivers
- Lightwave converter
- Lightwave component analyzer
- Lightwave measurement system mainframes
- Lightwave polarization analyzers 8509B
- Logic analyzers
- Nemo wireless network solutions.
- Noise and interference test set
- Noise figure analyzers
- Noise sources 346A, 346B. 346C ,
- Matching pads (50 ohm to 75 ohm or similar)
- Materials test equipment
- Microwave repeaters
- Microwave downconverters 70427A
- Microwave / THz sources
- Milliammeter 428B
- Milliohm meter
- Mobile communications DC source
- Modular instruments
- AXIe
- Data acquisition (DAQ)
- USB
- PXIe
- Modulation analyzers
- Multimeters 427A, 970A
- Optical attenuators
- Optical heads
- Optical sources
- Optical spectrum analyzers
- Oscilloscopes 120A, 120AR, 120B, 122A, 130A, 130B, 130BR, 130C, 140A, 140B, 141A, 150A, 150AR, 160B, 180A, 180AR, 180CD, 181A, 181AR, 181T, 181TR, 182C, 182T, 183A, 183B, 184A, 184B, 185A, 185B, 1200A, 1200B, 1220A, 1221A, 1703A, 1707A, 1707B, 1710A, 1710B, 1715A, 1722A, 1725A, 1726A, 1740A, 1741A, 1742A, 1743A, 1744A, 1746A, 1980A, 1980B, 5403A, 6000A, 6000L, 16533A, 16534A, 54100A, 5410B, 54100C, 5100D, 54111D, 54120A, 54120B, 54200A, 54501A, 54502A, 54503A, 54504A, 54520A, 54520C, 54540A, 54540C, 54542A, 54542C, 54600B, 54601A, 54601B, 54602B, 54603B,? 54645A, 54654N, 54710A, 54720A, 54750A, 54825N, E1428,?
- Oven controlled crystal oscillators (OCXOs)
- Pattern generators
- PCM terminal test set
- Phase noise measurement
- Pico ammeters
- Printers 2225
- Plotters 7470A, 7475A?
- Probes
- Protocol analyzers and exercisers.
- Power booster test sets
- Power meters 431A, 431B, 431C, 432A, 435A, 435B, 437B, 438A
- Power splitters
- Power supplies
- Pulse generators
- Q-meters 4342A?
- Q-meter calibration inductors 16470A
- Reflection transmission test set
- Return loss module (optical)
- Relays / switches / switch matrices (optical)
- Relays / switches / switch matrices (RF)
- Resistor standards 42030A?and 42100A
- S-parameter test sets
- Scalar network analyzers
- SCSI bus preprocessor interface E2324A
- Selective level meters 3746A
- Semiconductors
- Semiconductor parameter analyzers 4145A, 4155B, 4156B,
- Signal analyzers
- Signal generators / sweep generators / signal sources / oscillators 200CD, 201B, 209A, 204D,? 608A,? 8165A
- Software
- Source measure units
- Spectrum analyzers 4195A,???
- Switch control units
- SWR meter 415E?
- Time interval? counters
- Time mark generator 226A
- Timing and data state modules
- Torque wrenches
- Transmitter testers
- Trigger modules
- Ultrasound transducers
- Universal bridge? 4260A, 4265A, 4265B?
- Vacuum tube voltmeter 410C
- Vector Impedance Meter 4193A, 4800A, 4815A
- Vector Network Analyzers (VNAs) 4195A,? 8510A, 8510B, 8510C, 8753A, 8753B, 8753C, 8753D, 8753E, 8753ES, 8752ET, 8719A, 8719B, 8719C, 8719D, 8720A, 8720B, 8720C, 8720D, 8720ES, 8722A, 8722B, 8722C, 8722D, 8722ES,
- Vector Network Analyzers (VNA) calibration kits 85032B, 85032E, 85033C, 85033D, 85033E, 85050B, 85050C, 85050D, 85052B, 85052C, 85052D, 85054A, 85054B, 85054D, 85056A
- Vector Network Analyzer (VNA) verification kits
- Vector Signal Analyzer 89650S, 89600S
- Vector voltmeters 8405A, 8508A,
- VXI mainframes 70000B, 70000C
- Waveform and function generators
- Waveguide to waveguide and waveguide to coaxial transitions.
- Wireless 58 OTA chambers
- Wireless channel emulators
- Wireless network emulators
- Wireless communication test sets
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Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
I also grew up in the UK and was at secondary school (age 11-16) in the early 1960s and had the same experience as Paul, because I went to a village college we also had 2 hours a week of what was known as 'Rural Science' added to the other practical subjects, we had just over half an acre of cultivated land, a small fruit orchard and a couple of large glasshouses where we got to put farming theory into practice (and took our share of the fruit and veg harvest home!). All practical subjects were taught with the view that we would likely be getting jobs that would need those skills for real too, so we got 'work experience' weeks from time to time where we were sent off to local companies for a week and worked on the shop floor. The result was mostly a whole bunch of very employable 16 year old kids leaving school with the basic skills and confidence to set us up for life.
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Oh yes, my first soldering was done with a fire-heated iron too, Dad gave me a crystal set kit for my 8th birthday and we sat up building it that night, heating the iron on the kitchen coal fire. Strange, that must have been March 1957 and I still remember that night so clearly! Adrian On 19/03/2022 18:41, Paul Bicknell wrote:
Hi Dave regarding good quality tools and how to use them |
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Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
¿ªÔÆÌåÓýYears ago I used ammonium persulphate to etch boards.I had a hard time convincing local chemical distributor I needed it. Appears it is also rocket fuel oxidizer. I used it in a bubble etch tank with a few drops of mercuric chloride, IIRC. The fumes rusted a lot of stuff in my garage and it dissolve a spot of concrete leaving only the pebbles behind when a small quantity was spilled and not noticed. It turns blue when exhausted, does nor stain like ferric chloride and was faster. Glenn On 3/19/2022 10:29 AM, Jeff Kruth via
groups.io wrote:
-- ----------------------------------------------------------------------- Glenn Little ARRL Technical Specialist QCWA LM 28417 Amateur Callsign: WB4UIV wb4uiv@... AMSAT LM 2178 QTH: Goose Creek, SC USA (EM92xx) USSVI, FRA, NRA-LM ARRL TAPR "It is not the class of license that the Amateur holds but the class of the Amateur that holds the license" |
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Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
Hi Dave regarding good quality tools and how to use them
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In the UK when I was at school we had a minimum of 1 and a half hours per week of Metalwork , Woodwork , Technical drawing (total 5 Hours minimum ) this all changed and a new subject called ICT relapsed it all with less than 2 hours a week by a teacher that was not able to do the subject So we ended up with a generation that never learnt how to use any tools until they went to collage subsequently we have a generation between 33 to 40 that are dangerous with a tool I also had to teach several electronic and mechanical graduates that had their degree how to solder Personally I had a screw driver in my hand from the age of 5 and bought my first electric soldering iron with my 10 birthday money as I had difficulty soldering Jack plugs with an iron I had to worm up on the gas stove And by the time I was 19 it was worn out and I replaced it with a Weller that is still good 40 years later ( several new parts ) I must admit it is difficult to convince someone 10 sets of plyers in my draw will cost ?600 to replace when they think they are worth ?30 and ?40 would be to expensive Regards Paul -----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Dave McGuire Sent: 19 March 2022 15:54 To: [email protected] Subject: Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns! On 3/19/22 01:55, Alexandre Souza wrote: Hey, bad-mood-Dave!Well it's good to be known for something, at least. :-) Children takes the bad quality chinese crap because of price. I was:-) But for hobby...not everyone can afford an E8285A. I have one justI see your point. I think (and my thoughts on this are evolving with the help of this conversation) that the biggest problem I have is the younger folk not understanding or believing when/if these cheap Chinese instruments are inferior. "Hahahaa, you're dumb, you spend thousands of dollars for an oscilloscope, but I got one for thirty bucks!!" They're all equivalent in the eyes of many of these people, it seems. My thinking is that, whenever possible, we should be mindful of WHY people like us have respect for high-end equipment, and impart that knowledge to the younger generations, so they can appreciate them too. -Dave -- Dave McGuire, AK4HZ New Kensington, PA |
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Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
¿ªÔÆÌåÓýLaminating the outlines would have the problem of placing them exactly so.? You're dealing with (at least as small) as 4 mm space between tracks and 4 mm tracks.? What many designers do for a 2 layer board is a ground (or VCC) pour on a layer, which often fills in the blanks and reduces the waste copper.? The VCC plane or ground plane (both partial), do add to the stability of the design.? On a 4 layer board there is a dedicated ground plane, possibly a dedicated VCC plane, and those definitely add to stability.? Inner layers may or may not have ground pours, I didn't on one board.? The top layer on a 4 layer board had a vcc pour and the bottom layer may have had a ground pour.? Inner layers may have 1/2 ounce copper rather than 1. There are steps that can be taken. I don't know if people try to recover or not the copper from the etchant.? Possibly would be profitable in larger plants, possibly electrolytic methods.? Don't know. Harvey
On 3/19/2022 12:30 PM, greenboxmaven
via groups.io wrote:
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Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
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-------- Original message -------- From: si_emi_01 <wellington@...> Date: 3/19/22 12:46 AM (GMT-08:00) Subject: Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns! As is always said, a Dielectric Constant, isn't. FR-4 changes based on Frequency. The Standard was measured at NIST as a thick cube or block. That Standard is right around 4.5. At 1 GHz, it is around 4.05. So based on the base Frequency and edge rate (like 1 ns), of a digital signal, you need to consider that in your design. Also consider that your Stack-up thickness tolerance is generally +/-10%. That affects your target Impedance. It is caused by the heat/pressing/weave nesting (Resin vs. Glass), of creating the stack-up. Couple that with your Line Width tolerance plus over/under etch tolerances from vendor-to-vendor. That's why it is a good idea to have the vendor work with you when you have your design nearly completed. You may have to change your line widths or stack-up thicknesses. It varies from vendor-to-vendor too. Some will blow up the layer with the CAM Software and then shoot the layers reduced. Their tolerances vary. They generally use a TDR to measure Impedance on their PCB Coupons. They establish and control their processes this way. A Polar TDR and Tek TDR will give different values based on the launch and step rate. Make sure you trust it. The Impedance also varies based on where the Coupon is located on the panel (usually 18 x 22"). The pressing isn't always uniform across the panel. If you are designing very high-rate Digital Boards, you would look at other dielectrics and Weave Bias Routing options. FR-4 can be used for <2GHz Frequencies as Lothar recommends. Above that, aside from the change in Dielectric Constant, the Dielectric Losses (Loss Tangent), become prohibitive too. The Rogers 4003 and 4350 he recommends are good choices for GHz work. For more information you can check out IPC4103 Slash sheets for Duroid, PTFE Dielectrics. Ross Wellington -----Original Message----- From: [email protected] <[email protected]> On Behalf Of Lothar baier Sent: Friday, March 18, 2022 9:58 PM To: [email protected] Subject: Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns! With FR-4 you definatly have issues with ER lot variations this is why you use materials like rogers 4350B -----Original Message----- From: [email protected] <[email protected]> On Behalf Of Dave McGuire via groups.io Sent: Friday, March 18, 2022 9:22 PM To: [email protected] Subject: Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns! On 3/18/22 22:19, Lothar baier wrote: > If you do edge coupled microstrip filters or directional couplers than > the accuracy of the gaps is very important but another aspect that has > to be considered is the roughness of the edges ?? Yes.? There's a great deal of activity in building replacement boards and modules for instruments like ours (trying to bring this further on-topic), so if the results there are adequate, this does open up some possibilities.? One thing that causes trouble with the more affordable board houses is that sometimes they change substrate compositions, so the published dielectric constant isn't always something you can count on. ??????????? -Dave -- Dave McGuire, AK4HZ New Kensington, PA |
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Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
Lothar baier
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On Mar 19, 2022, at 11:31, greenboxmaven via groups.io <ka2ivy@...> wrote:
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Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
¿ªÔÆÌåÓýWas it possible to recycle the copper removed by these etchants? Was it possible in mass manufacture of circuit boards to laminate copper outlines of the crcuit paths, when there was substantial empty space on the finished board, so less would have to be etched away ? ??? Bruce Gentry, KA2IVY
On 3/19/22 10:29, Jeff Kruth via
groups.io wrote:
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Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
On 3/19/22 01:55, Alexandre Souza wrote:
Hey, bad-mood-Dave!Well it's good to be known for something, at least. :-) Children takes the bad quality chinese crap because of price. I was (still I am, surely) a very poor guy and had to use bad quality tools in my childhood. And suffered the effects on that. When I went "pro" I understood the value of good, quality and expensive tools. My first weller soldering iron I got when I was 15, and I still use it!:-) But for hobby...not everyone can afford an E8285A. I have one just because I got it for free. Around $2000 here in Brazil, too expensive fot 98% of all us BraziliansI see your point. I think (and my thoughts on this are evolving with the help of this conversation) that the biggest problem I have is the younger folk not understanding or believing when/if these cheap Chinese instruments are inferior. "Hahahaa, you're dumb, you spend thousands of dollars for an oscilloscope, but I got one for thirty bucks!!" They're all equivalent in the eyes of many of these people, it seems. My thinking is that, whenever possible, we should be mindful of WHY people like us have respect for high-end equipment, and impart that knowledge to the younger generations, so they can appreciate them too. -Dave -- Dave McGuire, AK4HZ New Kensington, PA |
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Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
Lothar baier
No activator, just plain chemical but i used a fishtank heater to warm it up
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On Mar 19, 2022, at 09:42, John Griessen via groups.io <john@...> wrote: |
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Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
On 3/18/22 20:04, Zentronics42@... wrote:
I am thinking about switching to cupric chloride as in theory I should not have much of a waste product.That's right. If you get too much volume increase of your solution by using it, some can be neutralized and it precipitates copper oxide out. The remaining water is low copper and neutral, so it can go on the yard plants. Yes, store the solution outdoors and use outdoors away from your favorite cars, tools, or anything else since it releases chlorine and HCl mist from bubbler operation. |
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Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
Hi Lothar!
Two questions: When you used Ammonium Persulphate, did you have to add an activator (few drops of something) to make it etch faster?? remember Kepro selling a small bottle with their "kit" that have the "magic" activator. Not sure if its needed.
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Second: What is your eBay handle, sounds like you have some good stuff.
?
Regards
Jeff Kruth
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In a message dated 3/18/2022 8:48:14 PM Eastern Standard Time, Lothar@... writes: ?
Actually eventually I switched to ammonia persulphate , cheaper no smell and less stress with mom over holes in shirts ? -----Original Message----- From: [email protected] <[email protected]> On Behalf Of Harvey White via groups.io Sent: Friday, March 18, 2022 7:29 PM To: [email protected] Subject: Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns! If you can get it, I'd suggest the CuCl method, about 4 parts Hydrogen peroxide (drugstore strength) and 1 part of Hydrochloric (muriatic) acid.? It'll need air bubbling through it as the hydrogen peroxide turns to water. Lots cheaper.? Ferric chloride eventually turns up being CuCl, anyway. Harvey On 3/18/2022 7:26 PM, Zentronics42@... wrote: > I still etch with ferric chloride here at the house. But I do use an earth sciences Hot shaker table with a water bath rather than food prep area. So at least some improvement. > > Zen > > -----Original Message----- > From: [email protected] > <[email protected]> On Behalf Of Lothar baier > Sent: Friday, March 18, 2022 6:55 PM > To: [email protected] > Subject: Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns! > > Oh lord , I remember me and dad etching circuit boards using ferric > chloride solution on the kitchen stove >> On Mar 18, 2022, at 17:22, Dave McGuire via groups.io <mcguire=[email protected]> wrote: >> >> On 3/18/22 18:00, Zentronics42@... wrote: >>>? ? Zen is one of my names I guess. Living in the digital age you seem to collect things like names. >>> I have gone by Zenwizard on line for going on 25 years now. For off line use I am an Eric, however there are also some that know me as Adain (there is a LONG off topic story there). >>? Ah, sorta.? I've been living in that same digital age, but never did the nickname thing.? We don't have rigid rules here, but this is a mailing list of mostly professional types, so we do prefer the use of given names.? I'm by no means bossing you around on that, but just consider it a light suggestion from a list moderator. >> >>? Either way, welcome! >> >>> I am honestly looking to push the lab in to the RF space. But even now the gear is cost prohibitive to acquire at a rapid pace. I have recently (with in the last year) been able to acquire proper spectrum analyzers for the lab. HP E4411B and HP 8596E.? I have my 10 Mhz reference sorted this year as well. So lab building is going well but it is slow. I am targeting some VNA and some microwave equipment as well as precision DC and calibration standards. I am in to the expensive toys it seems. >>? RF is great fun, and a wonderful thing to sink your teeth into.? But yes, it does get expensive.? The "good/fast/cheap (pick any two)" rule applies here; amazing deals can be had if you're patient, but personally I think patience isn't all it's cracked up to be.? If we keep waiting, by the time we're dead, we'll have great stuff...No thanks!? But really good deals do come along from time to time, if you're lucky. >> >>? Your E4411B and 8596E are a great start.? You'll need some good signal sources too, and a good microwave counter.? Next would probably be a power meter.? Fortunately these are all pretty easy to come by, with the possible exception of a sensor for the power meter. >> >>>? ? As for background it is extremely wide and varied. But most of it has been electronics based, computer based, or getting the two to talk to each other in some way. >>>? ? I'll also be taking two students to their first swap meet in a few months... their first one will be the Dayton Hamvention. So we are going to start small? >>? Hahaaa yes, trial by fire indeed. ;)? If their minds aren't totally >> blown by that, they might survive! B-) >> >>? I'm about 4.5hrs East of Dayton; I may have some gear for you, but you'd need some car space.? That may be a challenge after Dayton. ;)? I also run the Large Scale Systems Museum (google it) which you might find interesting, if it would be convenient for you to extend that Hamvention road trip. >> >>? ? ? ? ? ? -Dave >> >> -- >> Dave McGuire, AK4HZ >> New Kensington, PA >> >> >> >> >> > > > > > > > > > > > |
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Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
And store it outside if at all possible, and not on concrete.? It outgasses and will rust iron or steel.
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Harvey On 3/19/2022 5:18 AM, Wilko Bulte wrote:
+1 for CuCl etching. Do use a wel ventilated area! |
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Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
Yes, and no.
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With an insulating resist, it will etch the copper away as long as there is active etchant in the tank. With a solder resist, the under cut is prevented by the action of the tin/lead. Sort of like how zinc protects the steel around it from rusting in the galvanize process. Given enough time in the tank, all active metals will disappear into solution. -Chuck Harris On Sat, 19 Mar 2022 01:14:06 -0400 Zentronics42@... wrote:
Time is also a problem to long in the tank is a guaranteed over etch. |
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Re: Agilent 3458A Troubleshooting
¿ªÔÆÌåÓýThanks everyone for the replies and for all the favourable comments about the 3458A. ? I forgot to mention that I have checked the power supply voltages and they are all OK. ? If I can¡¯t make any headway from members of this group, I will certainly try eevblog next. ? Cheers, George ? ? From: [email protected] [mailto:[email protected]] On Behalf Of tmillermdems
Sent: Saturday, 19 March 2022 2:43 PM To: [email protected] Subject: Re: [HP-Agilent-Keysight-equipment] Agilent 3458A Troubleshooting ? You can get the clip from Artekmedia. The first step is always to check all the low voltage power supply voltages. The calibration on the 3458a just needs a precision 10 volt reference and an accurate 10 k resistor. It is a wondeful instrument but repair and cal Keysight is a bit painful. It is still in production. Regards and good luck. ? On 3/18/2022 10:30 PM, Labguy wrote:
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Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
The best PCB films I ever managed to get were done by a friend who was into the offset printing business. They had film imagers at the time which could convert a CAD file into 4800dpi polyesterbase graphical film. "Flawless" edges, within reason.
2nd best I did myself using a surplus graphical camera from the same printing branch. Agfa Copyproof film, I still remember. All this kind of equipment is long since obsolete. Wilko |
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Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
Agree with the FR-4 Comments. The Dielectric Constant (ER and ER') changes based on manufacturer and other properties.
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As is always said, a Dielectric Constant, isn't. FR-4 changes based on Frequency. The Standard was measured at NIST as a thick cube or block. That Standard is right around 4.5. At 1 GHz, it is around 4.05. So based on the base Frequency and edge rate (like 1 ns), of a digital signal, you need to consider that in your design. Also consider that your Stack-up thickness tolerance is generally +/-10%. That affects your target Impedance. It is caused by the heat/pressing/weave nesting (Resin vs. Glass), of creating the stack-up. Couple that with your Line Width tolerance plus over/under etch tolerances from vendor-to-vendor. That's why it is a good idea to have the vendor work with you when you have your design nearly completed. You may have to change your line widths or stack-up thicknesses. It varies from vendor-to-vendor too. Some will blow up the layer with the CAM Software and then shoot the layers reduced. Their tolerances vary. They generally use a TDR to measure Impedance on their PCB Coupons. They establish and control their processes this way. A Polar TDR and Tek TDR will give different values based on the launch and step rate. Make sure you trust it. The Impedance also varies based on where the Coupon is located on the panel (usually 18 x 22"). The pressing isn't always uniform across the panel. If you are designing very high-rate Digital Boards, you would look at other dielectrics and Weave Bias Routing options. FR-4 can be used for <2GHz Frequencies as Lothar recommends. Above that, aside from the change in Dielectric Constant, the Dielectric Losses (Loss Tangent), become prohibitive too. The Rogers 4003 and 4350 he recommends are good choices for GHz work. For more information you can check out IPC4103 Slash sheets for Duroid, PTFE Dielectrics. Ross Wellington -----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Lothar baier Sent: Friday, March 18, 2022 9:58 PM To: [email protected] Subject: Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns! With FR-4 you definatly have issues with ER lot variations this is why you use materials like rogers 4350B -----Original Message----- From: [email protected] <[email protected]> On Behalf Of Dave McGuire via groups.io Sent: Friday, March 18, 2022 9:22 PM To: [email protected] Subject: Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns! On 3/18/22 22:19, Lothar baier wrote: If you do edge coupled microstrip filters or directional couplers thanYes. There's a great deal of activity in building replacement boards and modules for instruments like ours (trying to bring this further on-topic), so if the results there are adequate, this does open up some possibilities. One thing that causes trouble with the more affordable board houses is that sometimes they change substrate compositions, so the published dielectric constant isn't always something you can count on. -Dave -- Dave McGuire, AK4HZ New Kensington, PA |
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FYI: Added HPBASIC Documentation from TAMS to VintHPcom group
I'm including this notification here, since this group also has many users of HPBASIC.
I just added the 1999 Version of the TAMS HPBASIC Documentation CD contents to the files section in the VintHPcom group. /g/VintHPcom/files/HP%20RMB%20Basic/Documentation/HPBASIC%20Documentation%20from%20TAMS TAMS has generously given permission for personal use/reference of this documentation, for which I am specified as the grantee. The documentation is in HTML format and is intended for use only on individual personal systems, NOT to be placed onto a Web server for general public viewing. There probably are newer versions of this documentation (TAMS 2047K or 98616K-0100), if so please let me know and if possible share it with me so that I can include here in groups.io. |
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Re: Agilent 3458A Troubleshooting
¿ªÔÆÌåÓýHi Congrats Try a look at eevblog---they have done alot of work with HP 3458. Regards Hardy ? Fra: [email protected]
[mailto:[email protected]] P? vegne af Labguy ? I am trying to restore an HP3458A DVM and I need a little
help. |
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Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
Hey, bad-mood-Dave! Children takes the bad quality chinese crap because of price. I was (still I am, surely) a very poor guy and had to use bad quality tools in my childhood. And suffered the effects on that. When I went "pro" I understood the value of good, quality and expensive tools. My first weller soldering iron I got when I was 15, and I still use it!? But for hobby...not everyone can afford an E8285A. I have one just because I got it for free. Around $2000 here in Brazil, too expensive fot 98% of all us Brazilians I am happy children are buying crap tools. In the past theu couldn't afford anything. Been there... 73 de alexandre pu2sex Enviado do meu Tele-Movel Em qui, 17 de mar de 2022 22:28, Dave McGuire <mcguire@...> escreveu: On 3/17/22 21:16, Lothar baier wrote: |