How did you guys learn all this stuff?

How did you guys learn all this stuff?

What is that?

I didn't

it's autism jim but not as we know it

college mainly.

Google can make you look like an expert wherever you go. :)

wonder if one could learn all of this by oneself.
I never went past the basic electronics stuff... and I only have a very basic idea of how most of this stuff works. no idea how a whole circuit works, though.

Wew lad, that LM555 on a production board. This had to be designed by dunces.

You need a heaping helping of autism, some sort of CAD program for PCB layouts, and an internet connection to access Wikipedia and a search engine of your choosing. Welcome to Sup Forums.

They read the schematic, is not that hard if you know stuff like voltage and the function od every part.
Pic related disssagress

Start by getting off worthless social media sites and actually opening a book and buying some tools to experiment with.

Fucking around on the computer since I was 8 and then going to college for EE did it.

i am surprised the T9X45-JF even made it past design submission

Break it
Try to repair it
Trash it
Change it
Poke it
Break it
Fix it
It works
Upgrade it.

Commodore Amiga 600 motherboard.

Read a book, break some shit, try to fix some shit, get mad, read more, maybe fix some shit.

It's from an Amiga 600. Riddled with hardware problems.

Y'all need a home electronics lab. And not that Pinterest shit.

technologic

TECHNOLOGIC

What?
The 555 is probably the most jellybean part ever. Even more than the Z80 or the LM78xx/79xx regulators.
Seriously, I bet the machine you posted that from has a 555 in it in some way shape or form, or at the very least one of its PLLs is based on it.

clearly
it's obvious that design team had no idea what they were doing when they put ~9.3 volts on the 7.5v rail to the G.4860

You're 16 at most.
You like videogames.
You've owned a PS2 Slim.
You probably play either SSB or 3D Sonics, or both.
You're most likely a virgin and wonder why.
You interrupt people constantly.

i am older than your father good try kiddo

So I was spot on. Nice.

You really need to understand analog design to post here. The 555 is an absolute shit part to use in terms of stability, precision, consistency, or repeatability. If you've got a 555 doing an important job, you're most likely a terrible designer or being frugal in the wrong areas. 555s have been at fault for many many bugs for their part-to-part variance (as well as the tolerance of the components around them) as well as their wildly varied response around all sorts of power-related issues.

Seriously. This isn't Make:
The 555 is a sign of clueless designers.

You have no idea what you're even talking about.

How many designs have you seen to production?

Let me rephrase that. How many designs have you seen to production on the >20,000 unit scale?

Sometimes you don't need stability, precision and repeatability, and you need something cheap.
Engineering is not only making good, it is also about making cheap, yet not shit

Clean it up wagie!

>The 555 is a sign of clueless designers.
So 99% of all professional test gear made in the past two decades was designed by clueless people?
This guy knows. You're not going to use a fucking ovenized rubidium standard for a system clock, for example. You grab a common oscillator and divide or multiply its output.

...

>implying i trust magic crystals to do my timing
better load up on your essential oils too boy'o

Honestly learned hardware/software beginning with soldering a 29 wire flashable TSOP to an original xbox in 2004. Then decided to learn hex code to take the swimsuits off of the girls in DOAX on xbox. Got threats from team ninja over that one. I think Mirage actually got the worse end of that. Built my first pc that year. Learned to install windows. We hacked another game but never released anything because one of the guys got stupid and people worried about getting sued. Began working on the xbmc team in 2007? So for me it all began with xbox and soldering PS2 chips for cash.

>instinctively looked away from deep conditioning by screamers
The early 2000s internet was a wild west

Just about anything you do with a 555 could be done with another chip with a higher degree of reliability. Part of what keeps the 555 from being chosen in reliable designs is it's poor (and frankly unpredictable) response to leakage and transients.
Doing a little bit of reading, the A600 is known for it's lack of reliability. It might be fun to dig into the schematics to find more reasons why.
It looks like they had just come from a period of financial distress. Chances are the C-suite was pushing for "cheaper" designs. It's not good engineering if a significant percentage fail before you expect them to.

>99% of all professional test gear made in the past two decades
I'll bite.

Those days aren't over. YET.

A system clock is the furthest thing you would implement with a 555.

>Part of what keeps the 555 from being chosen in reliable designs is it's poor (and frankly unpredictable) response to leakage and transients.
So you blame the component that's working in-spec for the fuckup when its supporting components are the ones that are causing irregularities in the first place?
Did a 555 molest you as a child or something?
No shit. That was an unrelated example.

"What do you mean? It works perfectly until it's powered!"

Of course I do. We are talking about engineering here. The 555 does nothing until you place it in a circuit. You're going to have some leakage. You're going to have some microphonics, you're going to have transients. Design for them. This is what engineering is. That withstanding, this 555 is in a Power-on Reset circuit, I have seen this first hand and been burned. Do you want to trust your design to how fast or slow your rails come up?

depends on what they are asking
they want to fix and repair
or do they want to create something like that.

10 years of self-exile in my mom's basement after dropping out at 12

Had shitty computers, needed to throw things together with no money and improve them, learned on lots of reading.

I don't. I just Google what I need and piece everything together based on best guesses.

How do you think? They're pathetic shut-in losers.