S1-103 oscilloscope - soviet instrument

[MetraCollector]

Hello, I would like to introduce another artifact of my collection, it is a clone of some Tektronix.
Photos worth 1000 words, the only I can say about it is extremely poor quality of PCBs, poor components, unreliability, weight and dimensions.
Only 10MHz, but the lowest sensitivity is 50uV/div ! When I switch to this option, I can only see noise all over the screen. What is more, it is quad channel.
I acquired it while revision in my high school for free.

Enjoy

P.S. - Anybody know what Tek model it is clone of ?

//changed topic name and question - which instruments is this oscilloscope inspired by ?

https://picasaweb.google.com/100683312221737332313/S1103#

Overview


Cover off


Opened



Flexible mainboard:


Timebase (third from left)


Russian SMD


Vertical (Y) amplifier/attenuator

[grenert]

It looks vaguely like a Tek 5000 series.  However, it doesn't really seem to be a "clone," since the 5000 used plugins that could be swapped in and out.  It looks like this is stuck with whatever it has in it.  It only really resembles the Tek in the shape and in some of the layout.

http://www.barrytech.com/tektronix/tek5000/tek5000scopes.html

[Wuerstchenhund]

P.S. - Anybody know what Tek model it is clone of ?

It's very unlikely that this is a Tektronix clone. It's obviously different from the older Tek scopes, and the exterior design was quite standard in those days.

Besides that, there wasn't much of cloning with oscilloscopes anyways. The Russians (and many other east European countries like the Czech Republic or the GDR) were perfectly capable to design their own oscilloscopes, and some of the stuff was in fact really good and could easily keep up with much of the western counterparts.

[ftransform]

This is Armenian Radio; our listeners asked us: “Is it true that American skyscrapers are the tallest in the world?”

We’re answering: “Yes, it's true, but on the other hand the Soviet-made transistors are the largest in the world.”

[MetraCollector]

Thank you for your responses, perhaps you are right.
I changed the topic name. I don't know Tektronix portfolio very well so I suspicied this instument to be a clone of some exact model of Tek.

But it is true that many instruments made in former USSR were inspired by western electronics, I mentioned it in few my topics about old eastern equipment.

[frantisek]

This is no clone Tektronixu! Those were C1-91 and should be the C1-122.

[Hydrawerk]

Does it work?

[Performa01]

Yes, don't take it apart, turn it on!

Show us that insane 50µV/div! All the high sensitivity scope aficionados will jump and dance!

Seriously: This looks like a really nice instrument boat anchor. Do you know its age?
From the pictures, I do not think the quality to be so terrible. Not sure if our 'western' instruments of that era looked that much better...

[Hydrawerk]

This looks really interesting. https://picasaweb.google.com/100683312221737332313/TeslaODX222#

[Vgkid]

That is definately interesting.