World's worst tablet computer
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It doesn't look like it has through holes because it's single-sided.
You'd think so, right?
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It doesn't look like it has through holes because it's single-sided
You should really watch the video.
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I haven't got the brainwidth to spend 12 minutes listening to someone gibbering on in Foreign.
If it's double-sided for something that simple, that just adds to the WTF.
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I wouldn't solder anything to the leg of another component.
Nothing wrong with that. It can be an art form, even. Just not in this case.Here's some nice stuff.
5x5x5 LED Cube
http://cdn.instructables.com/FTP/9QCI/I9O1EFUF/FTP9QCII9O1EFUF.LARGE.jpg4Mx8 SRAM module
AVR Programmer
Lock-in Amplifier
And the completely insane :
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I haven't got the brainwidth to spend 12 minutes listening to someone gibbering on in Foreign.
If it's double-sided for something that simple, that just adds to the WTF.
What if he was speaking English and there was a prodigious amount of WTF in the video?
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I made boards like that back then. Except I didn't stick wires down with tape
I’m trying to remember if I saw any that had that, but I don’t recall. I wouldn’t bet against it, though.Oh, and I took the mounting points for my wires out to the edge of the board.
I definitely saw a good number that had them anywhere convenient on the board itself. More in the 1970s tech, but not unknown in ’80s stuff either.If it's double-sided for something that simple, that just adds to the WTF.
Again, not atypical for 1980s circuit boards as I recall them.
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4Mx8 SRAM module
This reminds me of a DIY upgrade for the TRS-80 CoCo that was popular in the 80's. If you had a 16K model and wanted to expand it to 32K, you would take 16 16Kx1 chips (32Kx1 chips weren't available at the time and wouldn't work on that motherboard anyway) and solder them into 8 2-chip stacks. On each stack, you would solder together corresponding pins for all but one (the MSB address line) of the pins. That pin, you would bend up and out of the way. After inserting the stacks into the sockets, you would run a wire connecting the bent-up pins on all the stacks to each other, and run it to one pin on the CPU's address bus.
At 800KHz, it worked very reliably, but it was really easy to screw it up if you weren't careful.
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stacks
The fun part is that engineers are bringing stacking technology back and touting it as a new thing.
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This reminds me of a DIY upgrade for the TRS-80 CoCo that was popular in the 80's
The Trash-80 was never "popular", merely "tolerated".Piggybacking was used all over the place, even in shipped products; I've still got a stack of ZA1250NL piggybacked chips I pulled from an early IBM PC, These have a weird setup - all the pins are soldered, and the top (or bottom, I forget) has /RAS0 swapped with /RAS1 meaning that the "second bank" can be selected in software. Basically, it's a 2x64Kx1 setup.
One of these days I'll manage to get enough of these together to make a hardware neural network.
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Some of that stuff looks like it is built on something like paperclip wires, like the AVR programmer, which is actually a thing of beauty in it's own way.
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@dkf said:
I wouldn't solder anything to the leg of another component.
Nothing wrong with that. It can be an art form, even. Just not in this case.Here's some nice stuff.
5x5x5 LED Cube
http://cdn.instructables.com/FTP/9QCI/I9O1EFUF/FTP9QCII9O1EFUF.LARGE.jpg4Mx8 SRAM module
AVR Programmer
Lock-in Amplifier
And the completely insane :
:what_wizardry_is_this.gif:
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There appears to be a prodigious amount of WTF in it, but I can't understand a word he's saying.
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He has an accent but it isn't very strong - are you not a native English speaker?
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He has an accent but it isn't very strong - are you not a native English speaker?
Oh, it's a strong accent alright. But it's perfectly legible even to me, and I'm know for being the equivalent of an 80-year-old grandpa when it comes to listening to English.
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I have heard much stronger accents than the guy in this video. I guess it depends on your own accent - I'm an American so the accent this guy has isn't very significant to me, but my Indian professors are almost impossible to understand unless I listen very carefully.
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I can't understand a word he's saying.
You can't cope with mild Australian? What are you, a New Zealander?
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someone gibbering on in Foreign.
That's how the rest of the world feel about the Scottish
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Tha mi an car bodhar, agus chan eil mi a'bruidhinn Beurla do cànan air tùs.