General > General Technical Chat
First IC you came in contact with?
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Mechanical Menace:

--- Quote from: Blofeld on May 14, 2015, 01:28:24 pm ---And I never dared to approach them with a soldering iron.
--- End quote ---

Too young to be know any better. I had a 520STFM and I got one of them 4 meg ram upgrades that came with a board that could take 4 1 meg simms, at the time it was amazing lol. I can't remember what but something hooked straight up to the CPU instead of the MMU and that's where I started.

In the long run it ended up with a blitter, fpu, switchable TOS versions etc, etc. Still works to this day even if the keyboard and case aren't very well.
ciccio:
It was in 1967 or 1968. A metal can op-amp (I believe it was a uA709, but I'm not sure, the UA741 came later), in the school lab.
We built a log amplifier, and the teacher was screaming us: "this device cost an arm and a leg, so please be really careful".
We used a socket, so the IC will not be damaged by our "fire sticker" soldering iron with pure copper tip, to be filed before each use, and then the IC could be saved and used by other students.
Good memories..
Blofeld:

--- Quote from: ciccio on May 14, 2015, 02:28:00 pm ---It was in 1967 or 1968. A metal can op-amp (I believe it was a uA709, but I'm not sure, the UA741 came later), in the school lab.

--- End quote ---

Was this any sort of engineering school or a "normal" school? They never let us play with electronics in school. I have dim memories of handling an oscilloscope in class once. But I think we were just looking at the output of a signal generator, no memories of building any circuits there, I did all this at home. The school had, however, several Apple II, and we could not only use them in class but pretty much everytime in the afternoon as long as a teacher was in the building.
Howardlong:
7400, and none of your lightweight LS nonsense either,  around 1976.
zapta:
7400. In high school, the digital electronic teacher started the class with a statement that any digital circuit can be built with nand gates only. The first circuit we built with the 7400 was a RS flip flop.

In another class we learned about the 741 but the 7400 beats the 741 any day of the week. ;-)
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