Ben Heck's Apple 1 Replica Part 2

[@glitchsmasher]

Element 14... The 14th element the the periodic table is silicon... It all makes sense now.

[@KnuxKitsune]

Yay! This calls for a party! Wooo! It is quite clever when you think about it. I was thinking of a similar riddle the other day, which was brought on by a poster in my office which says "Broken Promises" and recent interest in Need For Speed Underground. There is a song by Element Eighty called "Broken Promises" on the game's soundtrack, but I was wondering what element eighty was...it's Mercury! Which is a very useful but toxic metal.

[@kxmode]

Element 15 feels left out... (ಥ﹏ಥ)

[@glitchsmasher]

kxmode What does phosphorus have to do with electronics?

[@kxmode]

glitchsmasher Nothing. Phos'rus just wants to hang out with the cool, nerdy elements

[@razeezar]

glitchsmasher Phosphorus is typically used as the impurity in N-Type silicon doping for transistors.

[@jeremiahb7975]

I like how he's leaving the intermediate scope of DIY projects, and is getting into more complicated realms.

[@tetsujin_144]

Each of the _eight cores_ in the Propeller runs at five times the speed of the Apple's 6502, and the unit has as much memory as the rest of the computer... Augmenting old technology with modern technology feels so weird sometimes.

[@vcfederation]

Only some replica makers, not all, use microcontrollers. A very popular example of that approach is the Briel kit, which emphasizes simplicity and low cost. Others such as the Mimeo reproduce Woz's original Apple 1 design.

[@Lilithe]

6:30 Why does it have a high pitched (but not really even as high as tinnitus) sound when Ben turns on the power supply?

[@youtuuba]

This approach is very much like the Briel Computers "Replica I" Apple I clone.....just a 6502, a PIA, a RAM chip and a (EP)ROM chip, and a Propeller chip to do everything else (glue logic, video generation, etc).

[@jaykay18]

Don't take too many bytes from that Apple!

[@Thompzy]

*facepalm

[@michalnemecek3575]

the actual Apple I advertisement from 1976 (shown on the Wikipedia page) actually says: *Byte into an Apple ............................$666.666**

[@Liquid_Bread_Fabrewcation]

This is an awesome series. What are the chances that you could share a bill of materials as well as a schematic

[@talastas789]

did someone notice that hi pitch freq in the background??? makes me annoyed

[@Decipher13]

talastas789 oh good. I'm not the only one. So annoying!

[@davetriplett8109]

Why did i miss these episodes......

[@ImaginationToForm]

They Live, great B movie. I'm still not sure why you aren't using the laser paint method to do the pcb's. Seems like it be so much easier than this crazy hand wiring you are doing.

[@1stage]

This series makes me happy!

[@maximemobayen2200]

could you please state a link where you get all the parts of the apple one I love apple and am interested in making one so can you please put a link where you get the parts for this project thank you that would be great

[@yuppiehi]

At 11:35 .... Where's the CLEAR key? This is the one key that the Apple 1 had, but not the Apple II.

[@imagoatbah]

Technically debouncing switches means latching them to prevent high frequency logic from detecting multiple presses due to the physical contact bounce of the switch itself. Subtle difference, just felt like mentioning that, idk.

[@Domm_Dynamite]

I can't wait for part 3!

[@lbanting]

never used the Apple I, but using CALL then the address of the monitor should take you from BASIC to the monitor. at least on the Apple II that I remember from when I was in grade 6.

[@diasslo]

Making a full keyboard from scratch looks like a fun project

[@lewiitoons4227]

can you make a cintiq type thing with a monitor and graphics tablet

[@Furby_assassin]

I agree that would be cool!

[@lewiitoons4227]

:)

[@antmallett6065]

How is a 'Cintiq type thing' in any way related to a 1970's 8 bit computer? It's not even on the same planet.

[@lewiitoons4227]

ok awesome and also I was just suggesting a creation what do to suggest something I have to go on a video related to what ever it is I'm suggesting??

[@bossmass-eo3ez]

Hi, I was wondering if there was anyway to connect two computers together to create one faster computer for gaming. If there is any way is it possible that you make a video on it. Thanks.

[@JonMcPhalen]

When using the Propeller DIP you should always have 0.1uF bypass caps connected to the Vdd and Vss pins (on either side). It's a good idea with any chip, but a glitch on the power supply can knock out the Propeller's PLL if you don't include the caps.

[@FilmFactry]

How are there still 6502s? Are these vintage or are they still used for some applications today?

[@terminator557]

They're probably used for cheap embedded systems, so maybe it's in your washing machine or alarm system.

[@TheUglyGnome]

Yep! They are still produced: en.wikipedia.org/wiki/6502

[@kienanvella]

yep, still used. Z80s and it's clones are used everywhere too - CHUBB alarm systems use Z80 cpus.

[@JacGoudsmit]

FilmFactry I think Ben used a New Old Stock 6502 by Rockwell if I saw the logo correctly in part 1. They're still pretty easy to get. But Western Design Center (owned by Bill Mensch, one of the original designers of the 6502) still produces them in the billions per year. The WDC 65C02 can run at 3.3V by the way, and (in combination with a PIA from WDC that can also run at 3.3V) would have made Ben's circuit a little easier because he wouldn't have needed to convert the voltages between the Propeller and the 65C02.

[@macgeek2004]

+FilmFactry For the record, Intel still makes the 8088, too. It's used, for the most part, in micro-controllers and automated industry machine controls, etc.

[@someoneyoudontknow106]

i've got some questions if someone can answer them : 1) so the 6502 go to the reset vector to see were it should start executing code after the reset? 3)how i can send caracters to the pia and how the pia send me characters for the display 4)is it ok if i dont put the krusader on the rom ? 5)does the 70+ wires effect the signals (causing the replica to not function) ?

[@TwinPeaksIndustries]

1: Thats what every CPU does, after reset it goes to the reset vector (a hardwired adress) and starts executing code from there

[@TheTigermask1]

hey Ben could you do a Apple 1 Replica again but doing with eagle circuit board please or the Apple lisa

[@radarmusen]

Funny to see a propeller been used, I like the build in VGA but find it a little disturbing to program. (Spin)

[@_whiskey_warlock]

I'd love to see you guys build a 2 oscillator synthesizer. :)

[@michaelbarry8005]

A shifted 2 should be a double quote for true retro-goodness.

[@maxime22000b]

lots of wiring... do you have some techniques to speed it up ? could you show them ?

[@chrissantana2858]

hey are there any games that let you make cool circuits and stuff like this (excluding minecraft and other minecraft copies)

[@PixelOutlaw]

It seems like tactile hardware switches might be a bit tiring to type on. Probably the most affordable solution I guess.

[@Nickalaich]

What ic was used to connect display?

[@tsxownz]

what cad tool was Ben using for the keyboard?

[@vanhetgoor]

Maybe, an ASCII-keyboard is no longer an option, but what about a standard USB-keyboard, only with a single chip it could be converted into ASCII (I can imagine it, so a clever Chinese has made it before I even wanted it). Drilling and holing and stuffing is a lot of work, wiring the matrix too.

[@adrianomoraes7738]

How does he interfaces it with the laptop?

[@eformance]

LOL, the Propeller could also emulate the 6502.

[@jonatbei2220]

Ben would it we a great idea to make aportable arduino programmer in one of your future apisodes?

[@mikecunningham3423]

What would u even do with that? Real question I'm curious

[@darkdevil905]

Ben please can you answer this question, Is the propeller and the PIA programmed or are they just wired for convinience !?

[@someoneyoudontknow106]

darkdevil905 the 6520(PIA) can not be programmed the propeller is programmable and i think ben did programm it

[@gerardnieborg]

Isn't the propeller as powerfull as the 6502? Kinda defeats it's purpose. I do really like the project though.

[@kxmode]

Hi Ben, I'm working on a project where I am going to mod the marque on an upright arcade cabinet to a DMD. Basically the goal is to make the DMD change based on the game being played. I want to recreate the style of a pinball machine, but for an arcade cabinet. So for example Pacman starts up through MAME, software running on the OS would let the DMD know that "Pacman" is running. The DMD would then show the Pacman animation. I'm working within the dimensions of 20"w x 4.5"h. I've explored several options. 1. ColorDMD. I'm not sure if the developers have released the tools they use to create stuff like Lord of the Rings ColorDMD 2. A combination of traditional 128 x 32 DND, PinDMD2 and so forth. Something like this: virtuapin.net/index.php?main_page=product_info&cPath=9&products_id=216 3. Saw a LCD screen in half and try and make it work before I die from toxicity ಠ_ಠ Do you have any suggestions? Even better could to do a show on this?

[@spidermcgavenport8767]

Looks similar to the Gateway Solo 1150 I own.

[@stanrock0]

I think you had all the buttons written backwards on the back

[@EnhancedChris]

5:01 looks so satisfying.

[@NEzell-sj1yu]

I would love to learn to do this kind of thing some day. I can catch what you're doing and understand probably 95 percent of it while watching you do it, but if I were to try doing it myself? *waves hand over head* I've got SO MANY projects I think would be cool to do if I had your talent though, like a custom Mantle/ AMD A10-based handheld gaming PC, or custom PC cases, or maybe building a super-multi-console by hand from the ground up (having originals on hand so I can flash the BIOS, of course,) and things like that. Or, you know, an Xbox 360 controller with the joysticks in the right location. That kind f thing. Until then, I'll simply watch your show and dream.

[@NEzell-sj1yu]

aiklarung Wouldn't it? I'd like to build a keyboard designed specifically for playing retro games where the number pad, arrow keys, and function keys (like page up/down/etc.) were shifted to the left hand side of the keyboard rather than the right, so my hands won't be cramped to the right-hand side of my desk when trying to play those kinds of games. I've got a Nostromo, but an actual keyboard just has so much more function, and programming the Nostromo can be a chore. Plus, having grown up playing on consoles, movement on the left and interactive functions on the right just feels more natural than the other way around.

[@nychold]

I thought the same thing a long time ago. I went through physics classes, and learned all about resistors, capacitors, inductors, etc. but never really learned anything that I was interested in. It wasn't until my senior year in college when I took a digital design course that I got interested. They gave me a toolbox with some switches, some resistors, some 7400 series chips, a 5 volt wall wart, and a solderless breadboard and walked me through some very primitive (at least to me now) stuff about digital design. Today, I'm hooked, even if I still suck at the analog portion of it (like when to use resistors and capacitors).

[@TheTjoconnor]

nychold they taught you about electronic components in a physics class?

[@nychold]

TheTjoconnor Yep, both in physics with algebra in high school, and physics with calculus in college. It goes hand-in-hand with Maxwell's equations and Gauss's Law of Magentism.

[@richfiles]

If I ever build an Apple I clone... dang it, I'm not interested in emulating parts of it in software. A propeller is overkill for what amounts to higher order glue logic. I'd build a PIA using a CPLD or FPGA to design the PIA hardware and put it into a single chip. You could even have encoded the ASCII keyboard and shift register RAM in one, and used a modern solution to recreate the hardware.

[@Geertvanh]

Ben, you just have the best job in the world :-)

[@truehybridx1]

So in other words you are using a MUCH faster chip to drive input/output to the slower 6502 :D

[@Amvman29]

Dude. what 3d printer do you use?

[@Sparkfist]

After you are done with making the case. Contact the Woz and ask him to sign the inside. Then it will be on office Apple computer.

[@SumeaBizarro]

It would been cool (though not very cost effective) to buy Cherry switches, probably the clickier kind of pleasurable Apple 1 experience

[@gaming-zombie1392]

Love to built my own Lap-top some-day...

[@ChristopherLaRock]

I'm amazed at this guy's intelligence! Damn! Is there anything he can't build?

[@nabman11]

Data from Star Trek: The Next Generation.

[@ChristopherLaRock]

Nabman11 I'm sure he's done it, while working in an XBOX feature.

[@nabman11]

Christopher LaRock But he'd have to develop a pulsotronic brain that can store an unlimited amount of data that can be recorded over hundreds of years. It will be a major scientific breakthrough if he could build Data. Also, if he did, he wouldn't just make a standard video, he'd make a documentary and release it in cinemas.

[@ChristopherLaRock]

Nabman11 You mean he couldn't just use the hardware from an Atari 2600? LOL!

[@nabman11]

Christopher LaRock Haha not exactly. I think an Atari 2600 will be a bit too under powered to handle a conscience. Maybe trillions of them linked together would barely make up the brain.

[@pikadroo]

Why doesn't anyone ever put the semicolon after the end quote on the print statement. The display is so much more interesting.

[@jonatbei2220]

Sorry for my bad writeings it hard to type on a keybaord of your phone.

[@PatrickAllenNL]

this goes waaay over my head

[@UnicycleWheelie]

Hey Ben, IDEA...build a Bluetooth portable speaker/s with battery, maybe even a touchscreen to adj volume and EQ..or even add a sd card slot to play music off of.

[@richardhead8264]

A JOHNSON COUNTER?!?! They knew what they were doing when they named that chip! LOL!

[@kstringer24]

3:50 not mul-tie-meter either

[@jckf]

Your power supply makes a high pitched whine that is very audible in this video :(

[@imapie4688]

i am not a tech type person, but i think it is the speakers making those sounds (again, i am not a tech person so i don't really know, it's just a guess)

[@MCDubRat]

14:45 lmao, ben had to print the keyboard so he knew where the keys are at.

[@BrainSlugs83]

Honestly... the propeller could probably emulate the 6502 at a higher clock speed too...

[@BrainSlugs83]

At the very least, you could use the propeller to reset the chip after it boots up.

[@Re_Kitty]

I can't believe you don't actually show how any of this is made... You just show off what you did but there are no explanations or helpful advice AT ALL. Do people watching this seriously leave thinking they're smarter or something?

[@element14presents]

So how would you like that to be presented and what would it look like for you ?

[@Re_Kitty]

The Ben Heck Show With a lot more explanation of how relevant or most difficult parts work, Like how Dave does the EEVBlog.

[@element14presents]

Re So we need your help to identify what you consider what the most difficult parts are - to someone like Ben whom understands it that is hard to identify, could you post about it to the community where the rest of the team will see it and be able to help ? ow.ly/FEAMQ

[@GoldenGrenadier]

+The Ben Heck Show I think the very technical and tedious parts like writing teensy source code or programming EPROMs should be put in an extras video for those that want to learn about them. I'd especially love to see the more technical aspect of the Arduino IDE like adding and using custom libraries or the C syntax I can never get right.

[@AspectOfTheStorm]

This video is a little bit different than his others I've noticed. It's more advanced. He's literally building a computer from scratch. When you do a big project like that it can be hard to get out of "critical thinking mode". There's a lot of stuff he has to do and to elaborate on every little thing would be a nightmare. He'd never show us anything because he'd be explaining stuff the entire time. For those of us who do understand what he's doing (for the most part), it's actually a good flow. But yes, I will admit I'd like him to explain stuff a bit more, but I'm just telling you the reason why he did it this way.

[@NyanSten]

10:05 THEY LIVE WE SLEEP Nice reference :-)

[@TranscendentBen]

I saw the first installment of this, and I was afraid of this (the circuitry not having much resemblance to the Apple 1 or II). This is in no way a replica of the Apple 1. Heck talks at 1:20 about the Apple 1's video ram being "accessed with shift registers" - no, it was accessed with TTL counters on the alternate half-cycle of the 6502's clock, quite similarly to Don Lancaster's Cheap Video board. The shift register then received the value of a character generator ROM (for text mode) or the direct byte from memory (for graphics mode) and clocked it out serially as NTSC video. This wasn't "kinda slow," it was the exact speed needed to generate the video signal at the resolution used. Using hardware to access RAM this way to generate video was an integral part the Apple 1 and II, as well as some other computers at the time. One thing Wozniak did not have to generate his video was a propellor chip! For a true replica of the Apple 1 board, look up the website of Mike Willegal. He also has a short interview with Wozniak about the Apple 1 video generation.

[@thebluedino]

I need "Mul-timeter hahaha" as a ringtone

[@bradscott3165]

Anyone else here finding this lockdown material in 2020?

[@jjws600]

So.... That keyboard will ghost like hell?

[@SmoothEmJay]

You sir, are a genius.

[@KhanGarth]

he's making this a laptop? i thought the point was to make it as if Steve and Steve were making a more "legit" version of it in the 70's? meaning an old vacuum tube screen and not a laptop form

[@BoyAditya]

can wait the part 3 :-D

[@MsKaleb24]

Apple 1 Replica Part 3 please?

[@AMan-mc3vo]

8 bit bus... 8 bit system? The i8088 had a 20 bit address bus and an 8 bit data bus, yet it was binary compatible with the i8086, which had a 20 bit address bus and a 16 bit data bus.

[@tomcombe4813]

A Man The intel 8088 took 8 bit 2 bus cycles to retrieve one 16 bit word. On the inside it is basically a 8086.

[@kd1s]

Cherry MX series would have been better for a keyboard. After all you could also 3D print your own key caps and voila - an old Apple I or II keyboard.

[@AlexRingwoodUK]

Will the Keyboard have anti ghosting and LEDS, u gotta have all that! Right, guys?

[@MikeWaltonPro]

The Apple I is a great project to reproduce. If I only knew half of what you do Ben... Thankfully I don't have to. www.computerhistory.org/ I worked for many years. Many years have passed since those days.. but its still a feat what you've done. A project with a lot of love involved. Woz would be proud.

[@googaagoogaa12345678]

This is cool and weird and you took a byte out of apple

[@retrox684]

i would want to do something like this to make a commodore protable, buy i know very well I'd probally end up with a fire

[@TheRedCap]

11:36 ACSII...

[@charleswolfman]

This is really cool, but I can't help but find it ironic that the Propeller MCU is more powerful than the actual Apple I hardware.

[@BastetFurry]

Meh... you do know that if you go using it you could do all this inside the Propeller and call it a day? If you go and make a retro computer remake you should have used something that would resemble the timebase and use CPLDs for chips not obtainable anymore. But not a MC that could do everything on itself in a single chip solution.

[@KnuxKitsune]

He likes pointing with tweezers, but the question I want to know the answer to is "Are they Non-Megnatic?"

[@ThatEMOguy74]

Doesn't seem like the first or the second minute or scripted or that was just me.

[@Decipher13]

Am I the only one who hears a high pitch monotonous beep throughout the majority of the video? It's almost like tinnitus but when I hit pause on the video, it goes away.

[@arthurk5808]

Awesome thank u

[@unebonnevie]

LOL! The Propeller runs at 80Mhz and we are attempting to build a 1Mhz computer!

[@Borkicorn]

Ben i want you to have my childer this project is amazing

[@DIYdake]

And it is a McIntosh Apple that Ben is eating.... nice! =)

[@DIYdake]

Great for eating and cooking ! Yum ..... gotta go make some applesauce now... with McInstosh.. my favorite apple =)

[@Rambeard]

I wish I understood all of this

[@mikeypops73]

needed to be a Macintosh 🍎

[@N3m3515]

Is it just me or are these videos getting shorter and shorter?

[@griftereck]

how many have smirked, when they hear...Johnson counter..... :o

[@wojiaobill]

you have quite an impressive Johnson (counter)

[@joseph9770]

Is the microphone picking up the clock or something? eeeeeeeeeeeeeeeeeeee.....

[@tmar23]

No n-key rollover, no thanks.

[@chrismusaf]

Team multi-meter 4EVA!

[@calsmithisawsomelyapathetic]

HE ISN'T EATING A HOT POCKET? ITS THE END OF THE WORLD!!!!!

[@legojacobr]

is it sad when your keyboard (the laptop) is more powerful then the computer that you are using it with

[@MAYERMAKES]

nnneeed apple now....must byte.....

[@benoitcolson433]

CALL -151 return to the moniter from basic

[@michaelbarry8005]

That's an Apple 2 thing, bro.

[@benoitcolson433]

it's the same on the apple 1 too, in fact on the apple 1 -151 is the real reentry point to the monitor while in the apple 2 -151 is just a vector in rom calling the real rentry point of the monitor

[@michaelbarry8005]

Address "-151" translates to $FF69 in hex. In WOZMON, this is an "ADC #$88" instruction in the middle of the NEXTHEX subroutine. So, although a "CALL-151" might get you back to the WOZMON prompt eventually, I think that "CALL-256" would likely be more appropriate for an Apple 1. :-)

[@neut1121]

felix: fun job my ass!