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Thank you Gary for your presentation. Trying to build it my self and have a grounding question . Did you ground awa pcb directly to iec socket ? In regards to dual power supply for the meters circuit, did you ground it on chassis or did you leave it floating?

Got the same one, worth having in this day and age!

Excellent, thanks for sharing!

Nice scope. I like the compact size for a crt based scope and the very sharp screen.

Nice scope. I agree on how newer scopes have unacceptable delays when switching modes.

It uses a 3.5-inch floppy disk for waveform storage. Floppy disks are getting rare and floppy disk drives are no longer offered on computers, which could make continued use of this oscilloscope problematic.

Gary, can you make a video lesson showing examples of using the oscilloscope ADD mode and Subtract mode is used for measuring what type of signals? Youre adding or subtracting a dual 2 channel oscilloscope signals

24 years old or not, nice scope! Really nice display as well. Glad you invested the time to fix it up. Thanks for sharing!

That's one nice scope!

I've got the disease pretty bad. I want one of these and I've zero use for it other than wandering around downtown watching the screen like an elderly nutjob.

I cannot think of a faster way to establish that there is a short in the circuit. 💫🇦🇺

In the schematic I see 2 switch for range A and range B while in the real prototype I see only one switch, is it one switch or two used?

Curve tracers are most useful to match devices. Sometimes, one needs matched diodes such as in a mixer or matches transistors such as in a high power class AB1 push pull amplifier.

Nice review, thanks for sharing!

A company that I worked for in the early 1980's had one of these, but I don't ever remember seeing the user manual for it. We tried using it a few times but never found anything significant with it. I always wondered what was inside. There was no Internet in those days so I couldn't easily look this stuff up. Thanks for the informative video.

четкий метр)буду рад ремонтам єлектроники.блоки питания или материнки.Спасибо.лайк тебе и подписка

hello , very nice video, super like and sub to support you .

Love the content, presentation and the nails are great too!

HI, what kind of cable do you use to make the osciloscope probes?. Seems wifi antena cable

Why do you paint your fingernails? It put me off, Can't Watch. Too bad for both of us, I wanted to hear your presentation.

Very Good!!!!!

When measuring components in-circuit the octopus test voltage test current can turn ON "adjacent" transistors and diodes that are connected on the same PCB traces, how do you prevent this from happening?

I have the zt703s and a curve tracer from ebay. It doesn't work well at all. I'm going to try yours. Thanks for the video.

you always make the coolest stuff. it's funny i have an old tds2002c scope that practically identical only 70mhz but it has nicer colored buttons and logo hahaha. weird ehh. all the same features. i get your's is probably a little tiny older but it makes me wonder why mine exists haha. i tend not to use it anymore because it was a gift from friend and i'm known to be clumsy. also mine only came with 1x probes haha. keep up the great work. i have no idea why your sub numbers are not way high to the point of monetization.

Handy, but to be honest I dont recall any components actually failing in my designs and needing to be hunted-down with a curve tracer. Usually it's one of my hand-soldered surface-mount components that has a cold joint. In other words, MY fault. Your multimeter has a nice diode-test function and usually will work safely and accurately in-circuit. Yep, it even finds bad solder joints on teeny-tiny SMT transistors.

GARY, Any reasons why the 1v/1mA and the 3.5v/3.5mA outputs DON"T turn on transistors measuring components in-circuit?

Back in the 80’s and early 90’s these things were hugely popular, especially if you had an identical but functional PCB to compare with. Some techs were wizards with it, easily finding faults with it. As for myself, never got into it, but I can see why some techs were wizards with it, but hey, fault finding is an art, what works for one, does not work for all. Like most youtubers never seem to use an oscilloscope, for me an oscilloscope is the most important tool to use…

I had a Huntron Tracker on my bench at work back in the early 90s, you can actually find the service manual online, but I think the main ICs used in it are obsolete devices now. The basic principle of the Huntron is easy enough to figure out, and has the advantage of switchable frequency and voltage of the sine wave. Richard over at Learn Electronics Repair made a similar IV Curve tester with a relay switching between two probes with a common ground so you can compare two nodes in a circuit. This is great, say in a stereo amplifier if one side is faulty, and the other is working or if you have a known good electronic device to compare to a faulty one. This type of testing can be invaluable IMHO, and can really get you in the ballpark of where a fault lies.

Thank you for showing how it's done.

Very simple and effective. A similar curve tracer was used in old Hameg scopes, for example HM205.

I just picked one up for 10 dollars. It powers up but the waveform is a mess. I wonder if old dead batteries are causing the issue.

Thanks for the video. I just pulled mine from the bottom of a drawer not rummaged through in probably 20 years. These old radio shack meters fascinated and encouraged me, no, pulled me into electronics. RS knew what a noob was looking for back then. Lots of buttons, clearly labeled. Clean design. What for us, at least, could envision a complex piece of electronic test equipment should look like. Big. Sturdy. Serious. We bought 'em by the thousands. Heck, a quarter of my classmates bought these for home use. Oh, the joy and wonder of throwing open your box of magic and spending an evening pushing buttons, measuring the values of tiny components of various ilk. Putting something together and the poking it all over seeing how it work. Theory vs Real World. These old consumer grade but capable looking meters pulled many a budding EET into a world of mystery and creation. Thanks for the memories

can this device get iv curve for ic, igbt, triac as well?

I have the exact same oscilloscope!

The bluetooth ESR meter looks like an Adalm Pluto

I love the RS, Micronta and Realistic products. Have several of each, most left over from the 70's and early 80's that I bought for myself back in the day.

I've been looking at smd tweezers for a while now. The fact that it's cheap and accurate is good as are several other brands. The carrying case is what made the sale. I just appreciate having somewhere to keep it safe.

Nice 🙏

Great video as always. I think aneng and zoytek are the same company. I used to donate learning kits to people and i had an aneng and zoytek that were identical. Im wondering what your opinion on those curve tracer kits from ebay are. Not the asa-210k one. It literally magic smoked before i (plugged it into my good scope). I was going to get a dca75 pro but it seems limited in the votages it can apply when doing the graphs. I just scored a bunch of fluke meters. A friends father retired and had so much gear. I got an insulation tester. I forget the model but it came in a briefcase haha. I usually use my brymen bm869s exclusively. Great dmm for the price.

I had to LOL about how many of have a bunch of meters on our benches. Radio shack products was pretty good at times as long as you knew what you was buying. I own and still use some of the items purchased before they got into cell phone plans. Nice meter and it is great to see one still working.. Take care sugar

Nice benchtop meter - looks like pretty inspired by Fluke. Transistor identification is a cool feature here. I'm surprised it has just one small PCB, was expecting a mainboard. What was I thinking... that this is a Keithley or Fluke? Ha. Still nice for an amateur grade DMM, it's pretty capable. Perfect nails! <3

Hi Donna, just seen and really enjoyed this project and video. You mentioned that you had tried to use an op-amp for x10 or x100 can you briefly explain what is the function of x10 x100 and its use in testing- Bit lost as it was mentioned. Keep up the great projects.

Do you know what bulb is required to replace the one at 12:01? I just got one of these and found the bulb loose and broken in the case.

I just bought one of these off eBay that is in factory new condition. It looks like it was stored in a cryogenic chamber. All the parts are new and original , the tubes all measure above 90. Soldering was professionally done.on one iota of dirt or grease on caps, no leaking wax. E caps look new! It worked perfectly out of the box.I am not going to touch it !

Hey Gary, , or anyone on here ever try leakage testing capacitors with one of those "Withstand Voltage Testers" used for IGBTs & .. ?? They're capable of high voltage (50~500V+ +) with up to 5mA output.

Does the red wire (positive) same DC current as black wire (negative) when using UT210E ?

I've been happy with my Clt-3G. I'm surprised that it isn't more popular. This is the only video on TH-cam about it and as far as I know only you and I actually have one. It works great, thanks again for the tip.

what a score! I want one like that. Congrats.

Keithley has a easy to read display. We use a HP here and its not easy to see due to heavy sunlight in the daytime.