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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
?
Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
JBC- isn't that the British heavy equipment company? (backhoes, bulldozers and such) -Dave
On Saturday, March 19, 2022, 05:35:04 PM PDT, Lothar baier <lothar@...> wrote:
Back when i was a kit there were no cheap tools , in Germany we had all small local stores selling tools and all of it was name brand quality stuff . As far as soldering irons concerned ERSA was the common name but you had to either go to CONRAD or order the iron, weller was mostly used by commercial users and out if reach for hobbyists at the time . Dad bought me a ERSA soldering station for Christmas when i was 12 and granny got hit up mostly for hand tools usually as birthday presents. I got aquainted with weller at my first job and then bought a rework station through my place of employment mostly because they got a hell of a discount, i stayed loyal to weller until i got a job at Nokia , they used JBC and once i used one of their stations I ditched weller > On Mar 19, 2022, at 15:52, Adrian Nicol via groups.io <Adrian=[email protected]> wrote: > > ?Hi Paul, yes 1949 for me! > > My Dad was at the Cavendish Labs in Cambridge so I got to cut my teeth on all sorts of discarded electronic bits and pieces, when I was about 12 he got a lift back in the Cavendish van with a vast, non-functional Cossor 1049 'scope "to see if I could fix it" - on reflection, should you really give a 12 year old a box with a beefy 400V HT and a 4KV half Amp EHT supply and suggest he pokes around inside it? - as it happened it was easy to fix and two gassey valves and a burnt out pot later I had my first scope (or 'Oscillograph' as it was actually called) It's still out in the barn somewhere, I should dig it out and see if it can be fired up one day - it had a very pretty blue phosphor in the tube I seem to recall and probably emits a lifetimes X-ray radiation dose in about 8 hours! > > First TV I fixed was a neighbour's Pye VT4 when I was about 14 I think, I got my first real mains electric shock on that too, learnt a valuable lesson about never assume always check! It was out of it's case sitting on my bench and I'd been getting ready to put it back before leaving for school. When got back, picked the chassis up to slide it into the case and ...Bam!... really got zapped but I knew I'd unplugged it before I left that morning. Of course what I didn't know was that my mum had plugged it back in to show the neighbour? how it was now all working.....we both learnt from that, she still dined out on how she nearly killed her son when she was in her 90's bless her. > > Adrian > >> On 19/03/2022 19:44, Paul Bicknell wrote: >> Hi Adrian >> >> I think I must be a few years younger than you as I was born in !957 >> I started learning with the Philips electronic kits think it was called EE8 at the age of 10 but already dismantled a TV during one holiday when I was about 6 >> >> Regards Paul? located south coast England >>? >> -----Original Message-----
>> From: [email protected] [mailto:[email protected]] On Behalf Of Adrian Nicol >> Sent: 19 March 2022 19:32 >> To: [email protected] >> Subject: 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. >> >> 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 >>> >>> 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 >>>> (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... >>>? ? I 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 >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >> >> >> >> >> >> >> >> >> >> > > > > > > |
Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
Lothar baier
When you talking about phillips EE kits are you talking about the things that used the blue hole plates and springs to clip the parts ?
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On Mar 19, 2022, at 19:35, Lothar baier via groups.io <Lothar@...> wrote: |
Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
Lothar baier
Back when i was a kit there were no cheap tools , in Germany we had all small local stores selling tools and all of it was name brand quality stuff .
toggle quoted message
Show quoted text
As far as soldering irons concerned ERSA was the common name but you had to either go to CONRAD or order the iron, weller was mostly used by commercial users and out if reach for hobbyists at the time . Dad bought me a ERSA soldering station for Christmas when i was 12 and granny got hit up mostly for hand tools usually as birthday presents. I got aquainted with weller at my first job and then bought a rework station through my place of employment mostly because they got a hell of a discount, i stayed loyal to weller until i got a job at Nokia , they used JBC and once i used one of their stations I ditched weller On Mar 19, 2022, at 15:52, Adrian Nicol via groups.io <Adrian@...> wrote: |
Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
My father had an electronics business in the 80s. Ham radio stuff,
some computer and video game things. That business was mostly wound up by the time I was born, but all the parts and equipment were still there and he taught me about it. I learned to solder when I was seven, and dad taught me the basics. When the internet came along I became more self-teaching and learned how to use transistors, etc. I learned more in college, of course, and by experience. I think kids are really lucky nowadays - if their parents know how to support these interests. The breadth of stuff available, and so cheaply, is amazing, especially in terms of microcontrollers. When I was a kid there was the BASIC STAMP, but it was so expensive I only had one and that felt kinda limiting (plus the device itself was very weak.) There were the Microchip PIC parts which I at the time wanted to learn more about but wasn't sure of the pathway to, and the 8 bit era stuff I had access to and could tinker with but was beyond my 14-year-old self's abilities to get running from scratch. So I would build robots and other projects with, like, a whole thrift store 8 bit micro or a junker PC to control them. Contrast nowadays, where for a few bucks you can have a 32 bit ARM micro in a bread-boardable form factor with a complete suite of open source software including IDE. Not to mention similar microcontroller modules that have wifi, AI image recognition, FPGAs... There are plenty of other technical things to mess with that can get kids interested in engineering. 3D printers and drones and stuff can be built from a kit. I wish you could build a HeathKit smartphone but for technological reasons that has probably passed. Maybe someone should think of ways to get kids interested in digital modes for ham radio. |
Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
For me it was the mid-1960s, when I was in year 9 high school I think. Our 21" STC TV had lost sync. I asked mum if I could have a go fixing it. She looked me in the face and could see that I was desperate to have a go. So she said go ahead, seeing it was already broken. After all, what harm could I do? It took me 3 days to work out that the 6CS6 was the sync separator. I went out and bought a new one, plugged it in and bingo! From then on my reputation seemed to spread, and I made good pocket money after school fixing radios and TVs for friends. Those were the good old days!
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Cheers, George -----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Adrian Nicol Sent: Sunday, 20 March 2022 7:53 AM To: [email protected] Subject: Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns! Hi Paul, yes 1949 for me! My Dad was at the Cavendish Labs in Cambridge so I got to cut my teeth on all sorts of discarded electronic bits and pieces, when I was about 12 he got a lift back in the Cavendish van with a vast, non-functional Cossor 1049 'scope "to see if I could fix it" - on reflection, should you really give a 12 year old a box with a beefy 400V HT and a 4KV half Amp EHT supply and suggest he pokes around inside it? - as it happened it was easy to fix and two gassey valves and a burnt out pot later I had my first scope (or 'Oscillograph' as it was actually called) It's still out in the barn somewhere, I should dig it out and see if it can be fired up one day - it had a very pretty blue phosphor in the tube I seem to recall and probably emits a lifetimes X-ray radiation dose in about 8 hours! First TV I fixed was a neighbour's Pye VT4 when I was about 14 I think, I got my first real mains electric shock on that too, learnt a valuable lesson about never assume always check! It was out of it's case sitting on my bench and I'd been getting ready to put it back before leaving for school. When got back, picked the chassis up to slide it into the case and ...Bam!... really got zapped but I knew I'd unplugged it before I left that morning. Of course what I didn't know was that my mum had plugged it back in to show the neighbour how it was now all working.....we both learnt from that, she still dined out on how she nearly killed her son when she was in her 90's bless her. Adrian On 19/03/2022 19:44, Paul Bicknell wrote: Hi Adrian |
Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
¿ªÔÆÌåÓýIn Argentina we had Lupin Eletronica magazine, I do my first experiments with them. I was 8 yo when started. I do electron tube radio receiver ( very simple ) but my father don¡¯t let me to connect to hv. He used to test my first circuits that of corse don¡¯t worked unless her help. My father was avionics technician on Argentinian Air Force. In resume a life with electronics , a very fun life!! I keep that special feeling each time manage to ¡°align the electrons ¡° .?Ing. Patricio A. Greco Taller Aeron¨¢utico de Reparaci¨®n 1B-349 Organizaci¨®n de Mantenimiento Aeron¨¢utico de la Defensa OMAD-001 Gral. Mart¨ªn Rodr¨ªguez 2159 San Miguel (1663) Buenos Aires T:?+5411-4455-2557 F:?+5411-4032-0072 On 19 Mar 2022, at 19:30, Tom Gardner <tggzzz@...> wrote:
|
Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
Ditto. I still have few bits of my EE20 knocking around.
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I presume you have seen and I don't have any of the concentrated HCl + iron sulphate my father bought home on the bus, but I do have some lumps of sodium - and the red hot (soldering) poker. On 19/03/22 19:44, Paul Bicknell wrote:
Hi Adrian |
Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
Hi Paul, yes 1949 for me!
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My Dad was at the Cavendish Labs in Cambridge so I got to cut my teeth on all sorts of discarded electronic bits and pieces, when I was about 12 he got a lift back in the Cavendish van with a vast, non-functional Cossor 1049 'scope "to see if I could fix it" - on reflection, should you really give a 12 year old a box with a beefy 400V HT and a 4KV half Amp EHT supply and suggest he pokes around inside it? - as it happened it was easy to fix and two gassey valves and a burnt out pot later I had my first scope (or 'Oscillograph' as it was actually called) It's still out in the barn somewhere, I should dig it out and see if it can be fired up one day - it had a very pretty blue phosphor in the tube I seem to recall and probably emits a lifetimes X-ray radiation dose in about 8 hours! First TV I fixed was a neighbour's Pye VT4 when I was about 14 I think, I got my first real mains electric shock on that too, learnt a valuable lesson about never assume always check! It was out of it's case sitting on my bench and I'd been getting ready to put it back before leaving for school. When got back, picked the chassis up to slide it into the case and ...Bam!... really got zapped but I knew I'd unplugged it before I left that morning. Of course what I didn't know was that my mum had plugged it back in to show the neighbour? how it was now all working.....we both learnt from that, she still dined out on how she nearly killed her son when she was in her 90's bless her. Adrian On 19/03/2022 19:44, Paul Bicknell wrote:
Hi Adrian |
Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
Lothar baier
Growing up in Germany we had shopclass as well as technical drawing , later when I learned a trade we had to go to vocational school once a week and beside of all the electronics stuff we also had metal working
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On Mar 19, 2022, at 14:32, Adrian Nicol via groups.io <Adrian@...> wrote: |
Re: BS, was Re: [HP-Agilent-Keysight-equipment] Spread the word -- Swap Meet Returns!
Hi Adrian
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I think I must be a few years younger than you as I was born in !957 I started learning with the Philips electronic kits think it was called EE8 at the age of 10 but already dismantled a TV during one holiday when I was about 6 Regards Paul located south coast England -----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Adrian Nicol Sent: 19 March 2022 19:32 To: [email protected] Subject: 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. 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 |
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 |
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" |
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 |
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 |
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 |
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: |
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. |