Electronically they are not that complex (ie theory of operation), troublesome part is wiring - you don't have Chinese sweatshop workers/nearby technical school internes building your prototypes at enthusiast's lab, so it takes ages of mindless work to for example wire all the switches from the keys. Copy and paste of 50 switch debounce doesn't make project complex, it just makes it awful to build (hence Ben didn't use bucket of 555s because of time constraints):)

I don't think the thermal stability requirements are actually that difficult compared to, say, anything involving radio. Not sure how this ended up so drifty.

Not really the same thing. Yamaha keyboards at the time, bar their analogue synths, used FM soundchips, firmware etc.

How about VCRs and mostly CRT TVs?

Just imagine the pain in the ass it was to make the teleharmonium...

the keyboardnator

Skyboard 2.0

Play this note if you want to live!

Awesome sound never dies :-)

Are you sure you didn't borrow the HAL 9000 musical keyboard? 😆😛

unique = value

He wrote on a piece of tape bruh

@@DanJFilms first he wrote on the piece of wood and then placed a piece of tape because he made some mistakes along the way.

@@alextator9015 That's what killed me. He said it was one of a kind.

Then again it was made with literal trash

lol

😂😂🤣

Ryan Fiscus Not everyone has perfect pitch.

*The 8-Bit Guy would like to know your location*

@@andrewbarrett1537 that wasn't the point but ok

The tone is slightly different, yes.

It's the sound of a Wii crashing

I see an opportunity to spam ppl, i take it

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That. Would be extremely interesting to see what kind of feature set and interface could come up someone who is really digs the old stuff and knows all ins and outs. Would totally help with that, even.

Let's play Famicommodore on it.

LOL

Did you know it's the same guy on those channels?

Bazahaza yes i know it's the same guy.

;-)

Don't forget about "the ibookguy"

SwiftHelix the iBook guy is the 8-bit guy

amazing lol

😭😭

EpicLPer yeahhh!!! more collabs!!

top 10 anime crossovers

Thought exactly the same :D Love from Berlin, Germany

EpicLPer i know right!!!

same

No its because of bad circuit design. The adjustment is way too coarse. If one of the pots just drifts by 0.1% the frequency will be off. The adjustment range needs to be much smaller and you need to use low drift components.

I'm talking about the thing going out of tune AFTER it's been tuned.

🍿👀

@@crimsun7186 yeah and potentiometer drif *usually* happens *after* it has been set and in turn will cause it to be out of tune

@Corey Lambrecht nah the fact that he's quiet says enough 😅

Gameboy with a cold... I couldn't have said it better myself.

Weeaaak. 4/5ths of my library is chiptune

More like Saved by the Bell and Fresh Prince's baby lol

Well maybe you can... _swedish_ it (sorry, for the terrible pun, I apologize)

Yes, a simple oscillator design like this is going to be temperature-sensitive. You could get away with it with vacuum tubes because they generate their own heat and thus are less sensitive to the ambient temperature, but with solid-state circuitry, just putting your finger on the transistor or IC will warm it up enough to cause it to change frequency!

VWestlife yes the unpredictability of it is its weakness but also its charm the prototype i made of my project were all linked together thermally and coverd in heatconducting epoxy to keep it reasonably thermally stable.

VWestlife yes the unpredictability of it is its weakness but also its charm the prototype i made of my project were all linked together thermally and coverd in heatconducting epoxy to keep it reasonably thermally stable.

There are ways to compensate for this. One way is to use resistors with a very specific change in resistance by temperature. They call them tempco resistors. Design your circuit around these tempcos and you can get a stable analog signal within a given temperature range. Another way is to actually "take charge" of the heating using a heat source and a feedback loop (typically a DAC connected to a CPU). When the DAC tells you you're too cold, you increase the current through the heat source, and when the DAC tells you you're too hot, reduce the current. That way the chip stays at a consistent temperature, regardless of ambient temperature.

The Atari bit was never properly explained. I thought the same as you that they where using the sound chip from an Atari.

@@kristoffere9996sorry to reply to such an old comment but the name atari junk keyboard is a play on the atari punk console, which is a very simple and common 555 based noisemaker; this is an atari punk console (or a few dozen) made with a junk keyboard, so,, atari junk keyboard 👯‍♀️

An Arduino would've been perfect as a controller yeah. They also could've gone the Roland Juno/organ route and have an master oscillator with a bunch of divide down circuits to generate the notes.

Show don't tell. If you can do better, build it.

Yes, but the whole point of this project was to build it from simple circuites, not just toss in an arduino and make it perfect

@@varkokonyi an analog oscillator that can track 1V/octave is kinda easy to make, it would need just a few more components.

It looks like the point was to do it with all analog electronics. Of course you can make a better synth on a microcontroller.

TrevorJr26 what does it matter its a piece of shit

It's useful for everybody anyways! And even if not, that could probably be erased, and in the end it's his own property now, most likely...

Yeah it sounds awful IMO and it broke on him lol

I mean it WAS his first attempt at building a keyboard, and it did use different circutry than usual.

They gave it to him. It's his, so yes.

Not saying Felix isn't a really smart person, but Ben is sorta meant to be the "brains" of the show while Felix is the "brawn". They're both really clever and Felix knows a lot more about programming languages than Ben, but he does the dirty work most of the time.

He must regret bringing it in and is happy it's gone lmao

at least is a nice horn simulator

Atari junk keyboard.

I like the bass sound not musically tho

That's why it's called junk keyboard

L3 P3 lol I always thought the same sending and getting it back think xD

If you want to talk to him about that, you should email him.

use yamaha fm chip

gmod112 Hell yea

Did that ever happen? I'm kinda curious.

What sound chip? It doesn't have one!

Ha! Triggered :> Yea but you know what I mean, wish he could have at least modified the sound a little but then again... it broke on you anyway so.

that's a burn son

as I recall from bens vid, it uses the 555 timer chip 4 sound, so other waveforms ar not nearly as easy to do as you would think. and if you say he used 556 not 555, their the same thing, but 556 hat 2 555's in it.

+D-MMA and what might your age be, my fine smart ass?

yeah. Why is everyone being so harsh to Ben & Felix. It's such an awesome project, and it works quite well. It could've even been shipping that caused it to fail. It doesn't even have a sound chip and it still sounded good. I doubt 90%+ of everyone watching this video can actually comprehend how to build a keyboard of their own like Ben & Felix did. So much disrespect in the comments. It's like telling an artist their art is shit when it's their first time trying out watercolour; instead of the usual pencil drawings. Ben isn't technically a professional in the field of music, but he is at pretty much everything else to do with electronics. People are being way too harsh

From what I've seen of Ben, he is practically a god at this kind of stuff. I am in awe of what he can do.

That may all be true but this is intended to be a musical instrument, it serves a single purpose and it should be judged by its performance. If someone enginered a midi guitar but didnt bother with proper fretboard then it would be useless defeating the purpose of engineering it. As a viewer I see this video as showcasing a prototype which is nonfunctional.

Not really, he's just saying as a practical keyboard it's junk as you nead more polyphony and it needs to stay in tune and all that. But he's also saying that as a proof of concept its a really good idea that he enjoyed playing around with. Ben says its not as good as it could be due to his self imposed time limit and design choices to make it a quicker build. He does a llt of projects and cant afford yto get bogged down.

Eh, not really. It was a quick build, it is just a concept. I'm sure Ben and Felix just wanted to see if they actually could build a keyboard before they started building something more advanced and bigger.

It was a bit blunt perhaps, but to be honest, it was kind of a ridiculous design on Ben's part. Especially if they were on a time crunch, it seems like they actually made it way more complicated than it really needed to be, and made it worse as a result.

Daniel G That I can agree on. There were some things that they could've done better just as fast, but I still think it's an interesting concept with no microchips or anything!

Mmm, jury's out still. I like 8bit guy tons but Ben really knows his stuff so sounded a bit "meh" when in fact with time constraints it was very well executed - and 8bit guy probably couldnt do it himself in that timeframe.

mario64remix nothing except one of the original designers who came up with the schematics thought it sounded vaguely like a 2600 after they built it and the name stuck. Search "Atari punk console" on Wikipedia if you want more info

prufrockrenegade Thanks for the answer!

COUGH COUGH!!! Original designers my ass....Forrest Mims designed this circuits and published it in a series of cool little electronics schematics book, published in 1980 to look like someones hand drawn notes. At some point some people hit on this circuit and started selling kits of it to make money out of someone else's design, give it a stupid name, and inspire a million numbskulls to make horrendous sounds with this god awful design. I include myself in that. The best thing I ever did was throw away all my 555 chips, although someone did actually manage to make the 555 chip sing, the Thomas Henry 555 VCO is an osciallator worth playing, it;s a much more complicated build than this however (and way more expensive) but if they could build a keyboard that had 4 of those, which could be either across the 4 octaves or put into some unison mode, they would build a serious contender for a worthy synth. Akai released something like that which famously sounded awful at NAMM as it never kept tune at all, all the demo videos are beyond funny, I don't know if they ever released that synth, but surely these guys could build something better than it.

it sounds bad

not if you like experimenting with things. I guess you'd say the Moog synthesisers are bad too.

You were nearly right, it IS the worst

what's wrong with you? it's fucking amazing

is the sound amazing?

555 timers aren't exactly really related to Atari.

ThePacratz it was just a fun little project, not a design for commercial use. Most people don’t even know where to begin with a project like this.

I cant remember the details but the keyboard is essentially using the same method to create sound that the old Atari used. This was more a prototype to see if it could be done, a lot of effort but they learnt things and created something interesting.

Waste of time for you, maybe, but not for the people who made it, nor the people who watched the episodes and learnt a lot about simple electronics in the process. The nerve of some people...

ComandanteJ Please don't get me wrong, I honestly and totally respect the effort and the skills coz I could not achieve anything even close to working status. But this doesn't render the device useful. And srsly no disrespect at all to the creators. But I couldn't say "Great Job!". Could you?

No, of course not, but calling it "a waste of time" is going too far, man!.

"I honestly and totally respect the effort and the skills" Then act like it, instead of being a pretentious jerk. This isn't something that's supposed to have a utilitarian purpose. It's for fun and also serves as a teaching tool for basic electronics.