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Re: 3582A troubleshooting
Did something like that using the HP current tracer probe.? Set the output of a pulse generator to the desired maximum, feed that into the line with a series resistor, set the frequency low enough
By Harvey White · #109932 ·
Re: OT: Looking for recommendations on 3D modeling software
KiCad¡¯s ¡°manual¡± router is basically a human-directed topological solver with rip-reroute. If you get efficient with it, you can probably be routing a dozen traces a minute going across the
By Kuba Sunderland-Ober · #109931 ·
Re: 3582A troubleshooting
On 9/10/20 3:17 PM, Mike Vande Voort wrote: > all the posts about shorts in power supplies reminds me of the days > when I was a kid working in my uncles automobile repair shop. This was > damn near
By Dave McGuire · #109930 ·
Re: 3582A troubleshooting
Somebody did a Design Idea in EDN or Electronic Design magazine with a similar technique to quickly find open Christmas lights.Jim Ford?Sent from my Verizon, Samsung Galaxy smartphone
By Jim Ford · #109929 ·
Re: 3582A troubleshooting
all the posts about shorts in power supplies reminds me of the days when I was a kid working in my uncles automobile repair shop. This was damn near pre transistor, and most cars that we worked on
By Mike Vande Voort · #109928 ·
A few hard to find, minty service manuals available
After winding up stuff day (season) at Sphere for the year, I found a stash of almost mint Tek service manuals for some of the scopes and other items we had on for stuff day. Before I post them up to
By walter shawlee <walter2@...> · #109927 ·
HP 8593e alimentation A8
hello the group I am looking for the service manual for the power supply of the hp 8593e because I have no more voltage -15volts and I can not find anything other than the diagram gives on KO4BB and I
By on4lj@... · #109926 ·
Re: InfiniiVision 1000 X-Series Oscilloscopes
Well several posts by this OP appear on TekScopes with the same modus operendi : 1) A post about a superficially related/discussed topic (like a Tek MDO, on TekScopes) (and now here on this
By Roy Thistle · #109925 ·
Re: SEMs, was Re: [HP-Agilent-Keysight-equipment] 3582A repair success
Hi Mike, I can't speak of typical, as I am still trying to get my SEM out of its warehouse crypt. I can say that it has no enhanced beam voltage, so about 30 to 35KV typical of such an instrument.
By Chuck Harris · #109924 ·
Re: SEMs, was Re: [HP-Agilent-Keysight-equipment] 3582A repair success
And you don¡¯t want to vent the diff pump to the atmosphere while it¡¯s hot. I learned that in the mid-sixties as a college physics student. Got to take the pump apart and clean it with acetone.
By Jeremy Nichols · #109923 ·
Re: A1H neon bulb for on/off press switch
I buy neon bulbs from Mouser, they are all sourced from Asia, so I would assume they would be readily available across the pond.? If you want to someone who went to extremes to find neon bulbs for a
By Ted S · #109922 ·
Re: SEMs, was Re: [HP-Agilent-Keysight-equipment] 3582A repair success
How many KV is the typical X Ray ?
By Mike Vande Voort · #109921 ·
Re: SEMs, was Re: [HP-Agilent-Keysight-equipment] 3582A repair success
Turbo pumps might seem to be a great idea for an SEM, but they do vibrate, and in turn make your sample vibrate, fuzzing up the image. Oil diffusion pumps are much better in that regard. There are
By Chuck Harris · #109920 ·
Re: SEMs, was Re: [HP-Agilent-Keysight-equipment] 3582A repair success
My JEOL JSM-6100 Uses an oil-less pump as its roughing pump, which keeps the room from getting hazy. It has a water cooled oil diffusion pump under the column, and a little varian ion pump for the
By Chuck Harris · #109919 ·
Re: SEMs, was Re: [HP-Agilent-Keysight-equipment] 3582A repair success
The ISI had a really tiny diffusion pump essentially mounted under the chamber.? It's no more than a foot tall.? It has No LN2 trap, nor requires LN2, but it is water cooled.? We had water running
By KeepIt SimpleStupid · #109918 ·
Re: Agilent 54831M
I hope you're correct and the IC chips are fine. I forgot to reiterate that two out of four channels don't have a wave when in 50ohm mode - channels 2 and 3. I'll look at the manual to find which is
By Bostonman <bostonman73@...> · #109917 ·
Re: Agilent 54831M
ok, that's the test I was talking about. Have you tried running it several times or in a loop like 3-4 times? This is important as these scopes sometimes have intermittent failures that does not
By amirb · #109916 ·
Re: Agilent 54831M
Hmmm I'll need to check which self test I ran, but I attached the pictures of the messages I referenced before.
By bostonman73@... · #109915 ·
Re: Agilent 54831M
did you run the complete (or extended) self tests? can you post a picture of all the test results?
By amirb · #109914 ·
Re: Agilent 54831M
Today I measured the impedance on all four channels and they all measure 1M to ground when in 1M mode and 50 ohms to ground when in 50 ohm mode. I tried a calibration. It ran through channel 1 just
By bostonman73@... · #109913 ·