There is a very simple way to determine whether this microcircuit is from the USSR or not. It is necessary to accurately measure the distance between pins. In the USSR, the pin pitch was 2.5 mm, in the rest of the world, 2.54 mm. What is the distance between the extreme pins 15 mm or 15.24 mm?
Found on a breadboard in a recycling bin at the UofA in Edmonton.
Sovtek vacuum tubes have been popular with US musicians for decades.
They are well known for their tubes, I’ve used a few to swap out on some mastering 19 inch rack gear
Those were obviously meant for export.
Check if the pin spacing is 2.5mm or 1/10 inch. It doesn’t matter on such a small IC, but on a 40 pin it does.
I don’t think Sovtek manufactured the chip – more likely this was an export product and they just did custom labeling.
There may be some guitar pedal nerds out there looking for this IC
Their 7404 is a hex nyet gate.
There is a very simple way to determine whether this microcircuit is from the USSR or not.
It is necessary to accurately measure the distance between pins. In the USSR, the pin pitch was 2.5 mm, in the rest of the world, 2.54 mm.
What is the distance between the extreme pins 15 mm or 15.24 mm?
Its a 1990’s digital nand gate – so they must have been there 25 years ago doing siicon business
Amazing guitar equipment too!
r/suddenlycommunism
I’ve seen some of those Soviet dies under a microscope. They even printed the original Intel logos and copyright dates in their 10 um lithography.
It’s a chip off the old Soviet bloc.
I have one of these! No idea where I got it, but neat!