Just a warning about UNI-T. I know they have some pretty nice stuff, especially some of the DMMs and that nifty new little AWG they have for about $100. However, they will provide absolutely zero support. I bought a scope off them 12 years ago and while it was a nifty scope for the money back then it did have some bugs. I have tried to report these as I have found them and I've tried to see it they ever published a firmware update by sending in an email request every couple of years, but I never get nay response back from them. Nothing. The scope's bugs are no anything that would ender it useless and I have gotten 11~ sorta useful years out it, and I do have a bench DMM that has given me no real trouble either but for me it's time to move to a more market savvy company. One that has a concept of customer care.

I bought a Siglent scope recently and from what I hear they are responsive to customer issues. Maybe they are no Tektronix, Keysight or R&S, but I simply cannot afford the stuff those companies throw in the garbage.

What are other's experiences?

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Bill

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http://WilsonMinesCo.com/ lots of 6502 resources
The "second front page" is http://wilsonminesco.com/links.html .
What's an additional VIA among friends, anyhow?

I kind of miss my Tek 465. I was thinking of trying to get a Tek 2465B. They are an awesome analog scope. 4ch @ 400MHz. Ones in good working condition run about $1000 once you source a set of decent probes. The Tek scopes of those years long ago were just intuitive to use.

The new Siglent 1204X-E I got is not bad for a cheap DSO. It even has serial protocol decoding built in. There are some mysteries in it still but I'm getting used to it. One thing you did not have to deal with in the past was 4-layers of endless menus to get to the thing you need to change. That gets tiresome real quick. A couple of the really nice features it has though are a http server whereby you can view and control the scope from any networked computer. The other is the good set of trigger options. Not bad for an under $800 DSO.

Bothe the Siglent and my old Uni-T have an X-Y mode. I even have a cheap Hantek 4ch USB scope and an even cheaper Instrustar USB scope (which I bought as a gag) that will do it too. I think that is pretty standard these days.

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Bill

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http://WilsonMinesCo.com/ lots of 6502 resources
The "second front page" is http://wilsonminesco.com/links.html .
What's an additional VIA among friends, anyhow?

_________________
http://WilsonMinesCo.com/ lots of 6502 resources
The "second front page" is http://wilsonminesco.com/links.html .
What's an additional VIA among friends, anyhow?

Yup, that's what I'm talking about. However, I've just confirmed the UNI-T won't do it. The other 3 will, including the $50 Instrustar. I could have sworn I was able to do it on the UNI-T, but I guess it was the Hantek I used. Anyway, I can't find it on the UNI-T.

The UNI-T I have dates from quite a while ago. They were the first to put a big screen on their low end scopes. For the price ~$500 it was the only scope I found that provided 1mV/div input, true 1GS/sec and that big screen all in one package. All that is par for the course these days and can be had for less money.

I too have a lovely piece of HP tech porn. a HP1660A logic analyzer. I'll have to do a few weeks of weight lifting before I can retrieve it for photos though. LOL.

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Bill

Just found one of these down the road from me. They want $250CDN for it (less than $200 US). I'm tempted...

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Bill

I completely understand people who collect (and use) these classic HP devices – they just look the way lab equipment should. There's a saying in the aviation world - "if it looks right it'll fly right". Same goes.

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I like it when things smoke.
Blog – Zolatron 64 project

Nice,
i love my hameg. This one is round about 35 years old. The function generatr abouve just 1/2 year.
I had several UNI-T's, i think they're ok, but i didn't try to get support or repair something.
Don't be angry with me, but 12 years for a digital device from China is a decent amount of time.

A little true story on the side:
A well-known company here in Germany once developed a small digital radio that you could build yourself. It was such a kit with instructions with the background to convey some electronics and at the same time to have a nice project. The edition was only a few thousand pieces. This radio was manufactured and assembled in China. Also the software of the little chip. The part became a box office hit. Only 1 year later they wanted to relaunch the radio again. However, they only wanted to make a few small changes to the software. Like I said, a year later. But no chance. The software had to be developed from scratch, because none of the Chinese partners could remember that software. No version control system, no backup, even the employees couldn't help. Of course, the software could have been read out of the chip and disassembled. But the effort was equal to a new development.

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don't count on me, i'm engineer (Animotion)
my arduino pages: http://rcarduino.de

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x86?  We ain't got no x86.  We don't NEED no stinking x86!

Those square windows on teh original Comet never looked right.

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Bill

I have a HP 54645D mixed signal scope for about 25 years. It has two 100MHz analog channels + 16 digital channels sampling at 200MHz. It was several thousands dollars 25 years ago but now you can buy used one on eBay for $300-$400. I like it so much I bought a used 54645D as backup.
Bill

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x86?  We ain't got no x86.  We don't NEED no stinking x86!

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http://WilsonMinesCo.com/ lots of 6502 resources
The "second front page" is http://wilsonminesco.com/links.html .
What's an additional VIA among friends, anyhow?

That link goes to a Rigol scope. I've no experience with them but have seen them compared alongside Siglent scopes, for example this comparable one which is around $50 more at $380: https://www.jameco.com/z/SDS1202X-E-Siglent-Technologies-SIGLENT-SDS1202X-E-Dual-Channel-Digital-Oscilloscope-200MHz-1GS-sec_2283191.html. I have the 4-channel version of this Siglent scope which otherwise has basically the same features and have found it user friendly and capable.