axt
@axt.bsky.social
I like birbs and turbomolecular pumps <3
Medical steel augmented FMMT666.
+51° 25' 45.78, +6° 59' 9.36
Medical steel augmented FMMT666.
+51° 25' 45.78, +6° 59' 9.36
3dB BW is ~1.15GHz for one and ~810MHz for two channels activated, but this thing completely freaks out with three or more channels turned on. Full of aliases (even beyond 1.5GHz :) Maybe no CPU power left for filtering, hehe. But it’s actually nonsense to test this; signalpeeping a toy scope, lol.
November 30, 2025 at 5:01 PM
3dB BW is ~1.15GHz for one and ~810MHz for two channels activated, but this thing completely freaks out with three or more channels turned on. Full of aliases (even beyond 1.5GHz :) Maybe no CPU power left for filtering, hehe. But it’s actually nonsense to test this; signalpeeping a toy scope, lol.
Honestly, none of the advanced features, options, or triggers are really working on this MHO98 thingy, hehe. I only grabbed it for the form factor and the easy transformerless galvanic isolation. Bandwidth and signal integrity seem okay, though.
November 30, 2025 at 3:24 PM
Honestly, none of the advanced features, options, or triggers are really working on this MHO98 thingy, hehe. I only grabbed it for the form factor and the easy transformerless galvanic isolation. Bandwidth and signal integrity seem okay, though.
Reposted by axt
Φούρνος μικροκυμάτων Husqvarna, 1969
Εντυπωσιάστηκα!
Εντυπωσιάστηκα!
November 28, 2025 at 2:12 PM
Φούρνος μικροκυμάτων Husqvarna, 1969
Εντυπωσιάστηκα!
Εντυπωσιάστηκα!
Reposted by axt
If I’m understanding this correctly, X is owned by a white nationalist who pays poor people of color in developing countries to pretend to be working class white Americans to scare other white Americans into being afraid poor people of color from developing countries are going to ruin America?
November 23, 2025 at 7:30 PM
If I’m understanding this correctly, X is owned by a white nationalist who pays poor people of color in developing countries to pretend to be working class white Americans to scare other white Americans into being afraid poor people of color from developing countries are going to ruin America?
Looks like we have a winner: The new R&S MXO 3. Keysight was a clear disappointment — and we’ve used Agilent/HP gear for decades. Rigol and Siglent … meh, lol. LeCroy still can’t get peak detection right. Tek, nah. Looks like mom’s old transistor radio, hehe.
November 28, 2025 at 6:17 PM
Looks like we have a winner: The new R&S MXO 3. Keysight was a clear disappointment — and we’ve used Agilent/HP gear for decades. Rigol and Siglent … meh, lol. LeCroy still can’t get peak detection right. Tek, nah. Looks like mom’s old transistor radio, hehe.
Ended up taping the Rigol scope to the desk so it wouldn’t do a frontflip every time I touched the active probe.
November 22, 2025 at 11:46 PM
Ended up taping the Rigol scope to the desk so it wouldn’t do a frontflip every time I touched the active probe.
Oscilloscope weeks, as it seems.
November 21, 2025 at 8:48 PM
Oscilloscope weeks, as it seems.
We’ve got a Rigol demo unit here as well.
So far, its only real activity is displaying ‘Rigol’ and generating hot air. Maybe it’s busy counting bits in its massive memory, or just contemplating existence and entropy.
So far, its only real activity is displaying ‘Rigol’ and generating hot air. Maybe it’s busy counting bits in its massive memory, or just contemplating existence and entropy.
November 21, 2025 at 2:58 PM
We’ve got a Rigol demo unit here as well.
So far, its only real activity is displaying ‘Rigol’ and generating hot air. Maybe it’s busy counting bits in its massive memory, or just contemplating existence and entropy.
So far, its only real activity is displaying ‘Rigol’ and generating hot air. Maybe it’s busy counting bits in its massive memory, or just contemplating existence and entropy.
New Keysight oscilloscope. Now with digital channels on the back. No option to move them up/down on screen. Device not nearly as responsive as the old ones; everything’s lagging, ugh. And I absolutely dislike this new touchscreen trend. Why can’t I just have a button for the trigger menu goddamnit.
November 21, 2025 at 2:41 PM
New Keysight oscilloscope. Now with digital channels on the back. No option to move them up/down on screen. Device not nearly as responsive as the old ones; everything’s lagging, ugh. And I absolutely dislike this new touchscreen trend. Why can’t I just have a button for the trigger menu goddamnit.
100V, 30A (120Apk), 7mΩ, 0.8nC Qgd, GaN transistor; 1206 resistor for scale.
November 19, 2025 at 5:57 PM
100V, 30A (120Apk), 7mΩ, 0.8nC Qgd, GaN transistor; 1206 resistor for scale.
Last colors and the big chili goodbye.
See you next year. 🌱
See you next year. 🌱
November 13, 2025 at 2:32 PM
Last colors and the big chili goodbye.
See you next year. 🌱
See you next year. 🌱
Things that don’t belong in the lab.
But stereo.
But stereo.
November 9, 2025 at 1:23 AM
Things that don’t belong in the lab.
But stereo.
But stereo.
November 8, 2025 at 11:31 PM
This is of course not a not perfect quantitative analysis, but I swapped the filters three times, to reduce bias/offset effects in the room (*coughs*); and this cheap cut-to-pieces air filter mat beats the Weller Zero Smog Shield solder fume extractor by a factor of three. And price of 1/10.
November 7, 2025 at 10:55 PM
This is of course not a not perfect quantitative analysis, but I swapped the filters three times, to reduce bias/offset effects in the room (*coughs*); and this cheap cut-to-pieces air filter mat beats the Weller Zero Smog Shield solder fume extractor by a factor of three. And price of 1/10.
Is there a list of Thinkpads that do not have this sh!tty rubberlike coating?
Ugh. *würg*
Ugh. *würg*
November 7, 2025 at 2:06 PM
Is there a list of Thinkpads that do not have this sh!tty rubberlike coating?
Ugh. *würg*
Ugh. *würg*
I bought a particle counter, and as several studies suggest, these desktop solder fume extractors are pretty much useless. This counter doesn’t even detect the smaller (and much more harmful) particles and gases. Just 2cm of solder wire, and the device immediately sounds the alarm :)
November 7, 2025 at 1:19 AM
I bought a particle counter, and as several studies suggest, these desktop solder fume extractors are pretty much useless. This counter doesn’t even detect the smaller (and much more harmful) particles and gases. Just 2cm of solder wire, and the device immediately sounds the alarm :)
Coworker ordered two Siglent demo oscilloscopes for a week or two. A lot of memory and bandwidth, but that’s it. Quite limited and also not very responsive. Rather meh.
November 6, 2025 at 6:54 PM
Coworker ordered two Siglent demo oscilloscopes for a week or two. A lot of memory and bandwidth, but that’s it. Quite limited and also not very responsive. Rather meh.
As it seems, my old Tektronix „7934 Storage Oscilloscope“ is still working. Even forgot that it‘s still here, hehe. Will take it to the new lab. Enough room there (well, at least for now :).
November 5, 2025 at 2:10 AM
As it seems, my old Tektronix „7934 Storage Oscilloscope“ is still working. Even forgot that it‘s still here, hehe. Will take it to the new lab. Enough room there (well, at least for now :).
New wireless 3D printing nozzle has dropped.
November 3, 2025 at 2:51 PM
New wireless 3D printing nozzle has dropped.
Urban green woodpecker having breakfast. 🪶
November 1, 2025 at 10:42 PM
Urban green woodpecker having breakfast. 🪶
Perfect cut, I would say.
November 1, 2025 at 5:04 PM
Perfect cut, I would say.
Without my glasses, I thought the neighbors had put up some kind of Hallothingy decoration, lol. 🪶
October 31, 2025 at 11:03 PM
Without my glasses, I thought the neighbors had put up some kind of Hallothingy decoration, lol. 🪶
We have this old microparticle counter in the lab; working from 40μm - 0,18μ. Maybe it’s time to reactivate it to measure some of these filter mats for solder fumes extraction. New homelab is now in the basement, w/o ventilation, meh - and I will not spend >>1000€ for a production grade one.
October 31, 2025 at 4:30 PM
We have this old microparticle counter in the lab; working from 40μm - 0,18μ. Maybe it’s time to reactivate it to measure some of these filter mats for solder fumes extraction. New homelab is now in the basement, w/o ventilation, meh - and I will not spend >>1000€ for a production grade one.
To hell with those fancy, multi pad footprints. Two copper planes and done. Hehe.
October 30, 2025 at 5:37 PM
To hell with those fancy, multi pad footprints. Two copper planes and done. Hehe.
Cannot even leave the room for five minutes, lol.
October 30, 2025 at 2:47 PM
Cannot even leave the room for five minutes, lol.