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Interestingly enough, the YTer found and used my photo of the 8" Bernoulli cartridge. These things are really hard to find nowadays! When they came out, most PCs did not even have …

it's based off the original Signetics design :)

thank you, this was a very interesting read!

yes, most likely this is the case. also for the ethernet phy. there's really no good reason for it; these pinouts are pretty bog standard. chalk it up to corporate paranoia.

yes, and in 2022, the company that bought their stock, Excess Solutions, also shut down. https://twitter.com/TubeTimeUS/status/1548349563936722944

these exist, they're called tramways but they are more common in europe.

great project! i ran into it the other day and was impressed with the number of wires. i've been reverse engineering PCBs (mostly 2-4 layers) for a few years now and this is a part…

This is the most useful comment in the thread (so far)! This product would not work at all for any analog or power designs--EEs like to visualize current flow and a schematic is th…

you will enjoy https://507movements.com/

a whole bunch of stuff over the years. one unusual find was an original Williams tube memory from an IBM computer. https://twitter.com/TubeTimeUS/status/1441865304427036675

don't forget that the 3rd edition has a separate volume titled The Art of Electronics: The X Chapters which includes some really fascinating material i've never seen anywhere else.…

a more useful book for audio electronics is Handbook for Sound Engineers by Ballou. there are detailed discussions of common preamp circuits, equalizers, and that sort of thing.

for analog IC design, i highly recommend the excellent Designing Analog Chips [1] written by the person who designed the 555 timer. other books are more comprehensive and will give…

that is why the word art is in the title. regardless, it gives you a good feel for how many engineers actually design stuff in the industry. the problem spaces aren't fully constra…

nice work! i spent a lot of time learning to program using VB 1.0 for Windows (i could hardly wait and bought it as soon as it came out). it was so fast and lightweight compared wi…

and i still have the tube! at some point i should make a YouTube video about it.

yes, it is based on their reverse engineering work. i hand-copied every transistor from their netlist into a schematic and went from there.

at 50KHz, the LEDs mostly appear to be on, albeit at different brightness levels. but with the clock rate set much lower (say, below 50hz) it looks a lot more animated.

don't forget assembly costs. very few boards have such a large number of components, and they tend to be big and expensive server boards... larger boards are also more difficult to…

MOnSter 6502 creator here for any questions...

coauthor here: the book cover thing is a known issue that is turning out to be strangely difficult to solve. yes, the amazon cover is the older version.

we used a variety of tools: diamond saws, polishing wheels, hacksaws, and a lot of sandpaper. many of the samples had to be mounted using clamps or dop wax.

most definitely!

very close, we made some minor fixes before going to press.

we had a good number of subjects that didn't make it into the book. some we were not able to section in a way that looked as good as the rest, and others were redundant or didn't q…