What a sad person, wonder how he becomes a professor .

I worked at HP for a few years in the late 90s / early 00's. There was still a distant echo of The HP Way, but the corruption of incompetence was already there at that point. The fact that it has crumbled to the point of irrelevance is a sad thing.

4 figures! Are tou kidding me?, That's a ripoff 😮

so why not put a 1m ohm resistor (or 10k or 100k or whatever) in your homemade probe? what happens then?

You could mention that there are pretty simple active DIY FET probes which are perfectly capable if you don't need perfect calibration. There are hobbyists selling finished boards in the range of $20. I'm very happy with mine.

An A-37 with SouthVietnamese markings. Cool!

It's quite funny if you order 20x N7002A and don't add "mosfet".. purchase department might have some questions.. ^^

The best "cheap-out" scope probe tricks I use with my standard 200Mhz 10x probes are: 1. Touch the scope ground point with your scope probe to see how much “stray” signal your connection method is producing. This can help avoid wasted time chasing the cause of the “bad” signals that are not really there. 2. To see if your scope probe capacitance is screwing with your probed signal, touch the same point with a second probe to see how much it changes your displayed waveform with the doubled probe loading effect. If the displayed waveform changes “too much” then the scope probe capacitance is the most likely cause. You don’t need to monitor the second channel, but it needs to have the ground lead connected to your circuit and be plugged into another scope input (even the external trigger input). 3. To reduce the loading effect of the scope probe capacitance, grab a 1k-Ohm leaded resistor with the scope probe and probe the circuit with the other end of the resistor. This can show a much better representation of the waveform being probed. 4. To reduce “RF” interference on low-level analog signals you are probing, grab a 10k-Ohm resistor with the scope probe and probe the circuit with the other end of the resistor. This will give you a better “BW Limit” function, lower than the scope button for the 20MHz BW limit with only a small additional DC error. 5. For a better understanding of the probing impedance effects in your circuits, use an impedance nomograph to help you estimate impedance ratios for the circuits you are probing (like the ones at www.testecvw.com/carl/CarlMain.htm ) Later, Carl

Nice... For the price of the cheapest one, you can buy 4 of my current bench oscilloscopes. 🤪🤪

Adding other people to your projects is going to be an option I don't think most people understand the power of software and open source this is going to make most people productive Mechanical and Electronics including material science will be done through software with the capabilities of AI in it most people who will develop products with software with AI capabilities are going to be more productive as time goes on no doubt about that. Adding other people must be an option not a must depending on scalability of projects and companies with employees what will make product software development even more efficient and reliable is the better development of 3D printing actually this will depend on 3D to be more effective laser in a 3D printer . if Altium does this it will be great and what this does also is to share supa GPU compute for more people who cant afford high supa compute to be having access to supa compute Omniverse from Invidia is proving to be effective with this .

@Dave OK the DIY Probe behaives differently, but which orobe points to what really happens on the bus?

4-5 figures!? It better come in a nice box. Interesting video.

4:52 "I would not be buying a sold-as-is FET probe off ebay!" Shahriar from the signal path definitely would, and it'd fix itself 2 minutes into the video 😂

They can throw in a nice case for the PRICE OF THE PROBE.😂

Main channel content

I loved those fish like probes with led eyes at my previous job :)

Gotta love them teeny tiny grabbers! Putting those LEDs on an active probe was a genius move on Agilent's part.

for measuring the rise time of a random gpio switching off a cheap microcontroller, 1GHz bandwidth might not be enough

My Rigol Probe not only does it have single, diff ended heads , plus 2 upmarket doggy Dave heads one with a ferrite bead 1 cable. It also contains solder a small ruler and a calibration kit.

"Beyond the bandwith", sounds like the name of a podcast

I see probe, I hit like.

I found a Hisense 50H8C and recently purchased a TV repair kit for a different TV a smart tv any way the screen broke in four places needs a new screen any other problems and it has two terminal to connect to the screen I believe the repair kit would work minis the center back cover unfortunately either way the old original TV part or new ones. Except the screen cost as much as the smart 4K television I seen a few for a good price which was a long time ago

Get the Miele vacuum cleaner easy to repair

The Meteor was a deathtrap in Korea

Australian Canberra bomders would not have carried nukes

loved your chat saying "Well the booster isnt gonna make it. its over." then the booster lands almost perfectly.

The Android phone app for this is really good too. I've been having a lot of fun messing around with uranium samples and whatnot. Cheers.

It’s probably based on Analog Devices’ GammaPhoton detector circuit. Uses a Fairchild PIN photodiode QSE773

Sounds like Colin Furz’ crazy twin…

Walking nearby dentists or radiologists might give you some peaks as it can detect their machines from quiet a few meters away. Also some people who just had a SPECT or PEP scan are quite "hot" and will also trigger an alarm from a few meters away.

"Little bit of a bend-ski."

Dave I have a fusor. I can use it to activate materials then record the gamma spec as the newly activated material decays. The 102 is ok but longer duration stuff, not a scratch on my big scintillator with 50kg of lead around it of course.

Yes. I want my two chicks back.

We're getting closer to star trek tricorders every day

only gamma :( no alpha, beta and neutrons - no fun :) i wander how much 4-way a+b+g+n spectrometer costs

It seems to update every 10 seconds

The PC software is kinda neglected as pretty much everyone uses the mobile app, so that's where all their development effort has gone. It's a lot more refined, feature complete and stable. Also jives with the portable form factor, it's small so you can take it every as an EDC, lugging a computer around as well defeats the point. (Although there are some advanced tools exclusive to the PC software) (Please don't shadow ban this one KZfaq pretty please)

Dave if you want to see one of these getting a workout, there is this funny Ukrainian group of fellas on KZfaq called “Kreosan” that explore old nuclear sites around Ukraine including Chernobyl. Worth watching.

Pretty funky! Far more functional than those old totally tubular meters of the '50s/'60s. That's americium. You-Ess-Ay! You-Ess-Ay! Not francium, not germanium, not polonium and certainly not chinesium.

I have the 102 essential as an edc. I suggest you try it. Strange sources everywhere. A particular Granit staircase set off the alarm every time…

Radiacode is or was Russian, not sure where they are built now. Looks very nice, but for the price, still a bit pricey for me, would love to have one thou.

Actually you sample the background for a long time and save it then sample the whatever item you wand and then subtract the background and you're left with what's in the the sample.

I want one for measuring my banana!

Go for a walk to the dumpster room. Actually don't. 😉

Wait for the new 103g version.

Scintillation detectors are quite sensitive. Not only do their readings differ with temperature, but even bumping the detector off a hard surface is enough to throw the calibration off. As is, it will work fine for common isotope identification for the general user. If a higher level of accuracy is required, the device can be manually re-calibrated using known source material. I believe the device updates once every 5 seconds by default, you can change it to once per second in the settings. Reading gamma spectrums is a bit of an artform and takes a lot of practice. The Americium-241 spectrum was very obvious, but the background spectrum didn't contain any of those highlighted isotopes. It was just a broad continuum of X-rays. One has to take into account decay products, backscatter, compton edges, and background readings to make accurate isotope identifications.

Pronounced Ama-Ree-See-Um