tod group question

i know ic are not allowed in tod instructables, but i have a question: what about ttl ics? they are composed of hundreds of transisotrs, so should be allowed right? awaiting a reply

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guyfrom7up9 years ago
hey, just found this topic! to kiteman: It's a group that I came up with to challenge people about how they think of ICs, and other electronics. For example, my instructable was a led display driver, their are ic's for that, but most people don't know how they work. As an additional challenge you are mainly only alloud to use diodes. You can use transistors, but only a couple, I prefer not to use them, but once in a rare occasion it's the only way possible (most the time a clever setup of a bunch of diodes can do the same function, just roud about). no ic's
I am puzzling over the name TOD, as in TO-Device, maybe ?
I made it up, it says in the group Tons Of Diodes Just because it can be amazing what you can do using a simple component.
Oh ok, that helps a bit LOL I remember the first "calculator" I tore apart (LED based) and it was all these diodes and almost nothing else. It would have been cool to have the schematic on that one (that was years ago though).
my math teacher went on one day about how when she was a little girl that her dad brought home (i forgot what she called it) a cube thingy that whenever you cranked it it gave out a calculation, and it was pureley mechanical.
Ah yes, I remember the old adding machines: Did it look ANYTHING like this one ?
I dunno, she was just talking about the good ol days, lol she says stuff as a matter of factly, like when we were going to have pie in school: Have you ever had real whipped cream? and people are like, from the can? and she's like, nonono, that's squirty cream, that tastes nothing like the real thing. lol
tech-king (author)  guyfrom7up9 years ago
ewwwwwww. gross. how can a math teacher say that? (please tell me it was a femal teacher at least)
squirty cream LOL never heard it called that before :-) Yeah, comparing "cool whip" with whipped 'cream' is like comparing sugar with saccharine bleh I had a H.S. teacher like that, but he was different. You could get him distracted for a whole class period talking about his old college football days, before they used helmets etc. He was a riot really (the class was on Atomic energy...an elective).
my math techer is awesome (she's british) one daywhenever people got an answer wrong she started insulting them using words from shakespear plays, it was halarious, she's like you toad stump or something like that, lol.
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