EEVblog #612 - Mailbag

Mailbag Monday
What should Dave do with his new lab internet bandwidth?

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[WooShell]

The Arduino Tape Dispenser definitely lacks a roll remaining sensor..

[FFcossag]

You just have to love old Soviet gear. I live in Finland, and it's not uncommon to come by old Soviet electronics like that calculator (and most of it looks pretty much the same on the inside). The weird thing is that they tend to be virtually indestructible, despite their dodgy-looking insides.

[verbatimrecorder]

I'm from Poland and i just wanted to say that this gunk mentioned along with the calculator was used as a warranty seal. So I guess your ELEKTRONIKA MK 61 has no warranty due to user interference :D. Greetings from Poland.

[FrozenHaxor]

That's a Russian calculator, not Polish.

[TheChipmunk]

One thing I loved about the Soviet electronics. Resistors with the value PRINTED on them instead of a colour code. For those of us who are colourblind, they were awesome!

[technics]

Polish mail "Poczta Polska" - damaged box, as always...

Greetings from Poland! :)

[JimFancherDIY]

I *never* miss Mailbag Monday! Keep them coming!

[JarosawSwierczewski]

Dave - that's Russian/Soviet calculator, and the writing is in cyrillic.

And the gentleman's surname pronounces like Filipovitch, Yakub.

[MsPeterpansen]

Love your comments on the Electronika Calculator!  This Kind of "excited" Dave is what we all love you for!

[ScottHenion]

I bet the DC-DC inverter is for the VFD display; they run on something like 27V..

[RicardasLee]

Its for the calculator: "Element basis :K745IK1302 -2 - the controller, the processor, the display controller and keyboard;
K745IK1303 -2 - arithmetic processor ;
K745IK1306 2 - additional processing functions MK-61 (as compared with the family calculators B3- 34)
K745IR2 -2 - registers the heap ;
K745GF3 -2 - the clock."
Russian electronics are still popular these days (vintage of course), so at least understanding of some symbols or letters is a really good skill. P.S. Polish write in latin letters, it was russian. ;) Greetings from Lithuania, love your videos, just sometimes try to be more proffesional! :)

[edss]

Take apart that ancient power adapter! I'd love to see how that compares to modern electrical standards! 

[Leonelf]

Video of the assembly of the cordwood puzzle? :D

[Psychlist]

Cordwood, not corkwood. Presumably named that way because it looks like wood stacked for burning (cordwood) and also the building style of the same name.

[DjResR]

Back in a day everything came with a schematic in USSR. But the calculator is russian not polish. Keep up the good work.

[rf]

Oh, man, I've used the Electronica MK61 back in my school days, that's crazy!

[Moraren]

2:30 I have walked down that staricase! Saltzburg is a really beautiful city!

[pawematuszczak]

Thanks for the video. Some comment from Poland - yes, these days (80s) there was no soldermasked PCBs in Poland, USSR and so on. Everything was wave soldered. Also interesting thing is that we had in Poland normal 74xx chips, but in USSR they were crazy - named like K155ЛA3 (meaning 7400).
You have to know that we aren't particularly happy when one confuses Poland with Russia. They have raided us many times and along with Germans make our country disappear for 123 years.

[technodaz]

My Arduino is shivering in his box at the sight of that shield. 

[INOTECHD_BEATZ]

I want that thermocouple board, wish I had seen this sooner!