Home made transistor from scratch
I have successfully made my own transistor using a piece of germanium, some copper wire and my 3doodler.
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I have successfully made my own transistor using a piece of germanium, some copper wire and my 3doodler.
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I love my 3Doodler. It is a tool I can not live without. So today when it started to jam and not pull in filament properly I took it apart to see what was going on.
Yup it was jammed with ABS dust.
Then I noticed the fan…
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So I am trying to debug my prusa i2 after having been rebuilt with a ton of new parts. I keep getting these messed up prints where the vertical shells don’t bond or have a gap between them along with a gap between the vertical shells and the infill.
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Got this neat system cheep.
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That said. Here is how I got my block erupter overclocked to 56o MHz briefly before it died.
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Enjoy
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I got this nifty piece of history cheep at a local estate sale.
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A simple light bulb change lead to disaster this morning.
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Warning! Nitric Acid is nasty stuff to play around with. I did this so you don’t have to! Do not attempt to do this yourself or you may end up dead!
So today I wanted to try and decapsulate some chips to see how they were laid out inside.
This was my first attempt. A Leapfrog L1000 arm chip.
Not sure if I etched everything off or this is some sort of copper obfuscation layer.
The other side looks like the standard back of a chip.
Next I attempted one of those custom glued down chips from a older leapfrog toy.
results were much better.
This is one really nice chip to look at :)
Some sort of die marking of who really made the chip. I couldn’t get a clear image of it.
This is at 500x zoom on my microscop
Next up I did a old DEC scsi chip
lastly a simple 8 pin eprom chip
I got the power wired up to day. Everything is good!
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