PAL-1 computer (KIM-1 replica)
ฝัง
- เผยแพร่เมื่อ 26 ส.ค. 2024
- We build and test the PAL-1 computer, a KIM-1 replica. Amy learns to solder!
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The 8-Bit Guy's PE6502 video
• Assembly and Review - ...
Putnam Electronics PE6502 Computer
putnamelectroni...
RC2014
rc2014.co.uk/
PAL-1 Kit
www.tindie.com...
Gearmo USB Serial Adapter FTDI Chip RS232 DB-9 920K w/TX/RX LED
www.gearmo.com...
Chuck Peddle
en.wikipedia.o...
W4JBM’s Github for PAL-1
github.com/w4j...
![fellow fellow - PROUD feat. INK WARUNTORN [STRING QUARTET]](http://i.ytimg.com/vi/BQrVkMPTdHE/mqdefault.jpg)
Back in the 80's I had an MCS-51 which was an Intel 8051 trainer. It had a similar layout and a prototyping section for doing all types of experiments. I wish I still had it. I did a ton of soldering (saudering) at the time populating boards for my employer. I think I got pretty good at it.
Your PAL1 looks very nicely done.
Thx!
I built a PAL-1 earlier this year. I also added the Tape interface card. It all seems to work but for the read function of the Tape interface. I still have to get back to it on that bit. It was such a cathartic process building and getting it running. I ended up mounting the whole kit on a piece of clear acrylic.
Oooh, I bet that looks amaze.
I love when people make stuff like this. It's alway goes the same way, we solder, then we spend absolutely ages debuging. But you've come out of it with some really nice boards. Keep up the good work, I'm really enjoying your videos.
C'mon TH-cam, why did it take so long for your algorithm ti recommend this channel for me.
Fantastic content!
Woo hoo! Thanks! *Sometimes* the algorithm works for good and not evil.
I just built the PAL-1 yesterday, it mostly worked first time, except for the Stop and Reset keys. I went back with a magnifying glass and looked at all the solder joints and found two that needed rework and then everything worked fine. I have built 3 retro computer kits now and feeling more confident I could handle more challenging kits now.
That is great! Keep it up!
Watching you young ladies being so enthusiastic about electronics my age is amazing :3 ! ! Building kits just for the kick of it, not even running anything. Then even debugging / bodge the circuits with almost no electronics experience really is NEXT LEVEL !! So darn well done !! CONGRATULATIONS !! And keep up the energy :D
Thanks! It's fun for the sake of it.
My next project will be recapping my Commadore 64. My Caps are on the way. Very excited! Finally using all this stuff that sits on my bench.
Did you recap that bad boy?
@@fractalMD Yes I did. But still black screen. Voltage is good through out. Ordered some sockets so I can swap some chips around. Have new PLA. I have two other C 64 that work but this is my baby so to speak. I'll get it going. Will have to be till crab season is over. Very tired.
@@patkelley8293 Crab season even just sounds exhausting.
I tried for decades to solder with a Radio Shack 35w pencil iron with no luck at all. I could never get the tip to heat up hot enough to do more than make a terrible cold solder joint if even that.
And then I got a new TS100... FET temperature controlled pencil iron, solder tip cleaner, solder tip silverer, good Kester solder, watched some PaceWorld Videos oldest to newst backwards, and everything changed. Now I can actually solder worth a flying flip. I'm not an expert, but it actually works now for the most part, at least with small wires that don't sink a lot of heat.
You really got to keep your tip clean, like I clean mine off after every two joints or splices, to keep that black oxidizing stuff off or the heat does not transfer. The silvering tip cleaner pretty much changed things for me I would say, and having a soldering iron that could heat up within half a minute to some serious hot degrees.
th-cam.com/video/xbFsys5EHw0/w-d-xo.htmlsi=I-VVnwiWOVAkh_HJ
Good advice for sure.
Nice job! Great video. The PAL-1 is a work of art. Anyone that wants to experience a KIM-1 (there so few left) can experience them with the PAL-1, plus have the satisfaction of knowing they built it from a kit. PS i think the unexpanded PAL-1 has 5 Kb or ram available.
another soldering tip, is to keep your TIP clean.... Have a damp sponge handy and wipe all the skudge off the soldering iron tip every two joints, or so.
Better still keep your tip clean with brass sponge.
I am experiencing a Déjà Vu. (this always goes with the companying music of Crosby Stills Nash and Young, a law firm I guess) Taylor and Amy are soldering a KIM-1 together. I've watched it and since I like the KIM-1, I have enjoyed it. For any reason I forgot the give it a thumbs up. And Now YT is suggesting this movie again, so I can watch it again and then this time I mustn't forget to give a compliment. In the Old Days YT showed a red bar under the movies I have seen, it's gone, now I can relive all experiences from the past, wait, oh no, Carry On.
I finally broke down and bought a "proper" soldering station (HAKKO, if you care) and suddenly I found I could solder good! All those years with crap soldering irons (and probably crap solder as well) and I thought it was me that sucked at soldering.
Soldering station is great for newbies. I sucked with a cheapo handiron, at first. Now, it’s more about using a small tip.
Just got my pal-1 up and running recently and wanted to thank y’all for doing this video. I was hesitant to tackle a solder job like this, but then I happened upon this video. Thanks for sharing your experience.
That's great!
When soldering a large socket or a connector - solder one corner on one side, then the opposite corner on the other side; stop and check that the socket is flat on the board. With connectors, solder the first and last pin and check that it is flat on the board. Then solder all the other pads.
Fantastic!
Hi, congrats for making this kit working!
Thanks!
Very entertaining. Thank you :D
Great video and great job!!! I've only started soldering a few months ago myself. I also learned by watching many of my retro guys like Jan Beta and Adrian Black and a newer guy, Wolfgang from Retro is the new black. I have soldered two 1084 monitor power switches which I felt OK doing because they are big wires to the switch that you do exactly the same as I did to take the bad switch out. I still need to do a CPU socket on my Commodore plus/4, but I don't want to ruin an almost 40 year old piece of retro history. I bought 3 beginner soldering kits off of Amazon for under $10 each and I'm working on those first.
On what you said about wanting to try CPM you should look into getting an Commodore 128. This 8 bit machine has two different CPU's (8501 @ 1MHz for C64 mode, the same 8501 @ 2MHz for C128 mode and a Z80 @ 4MHz for CPM mode). The C128 is like having three computers in one.
Press the reset button on the RC2014 to establish a UART connection. (When you get to that screen)
I promise you I have tried that ten thousand times.
Cool project!!!
Paper tape... you haven't lived until you've used paper tape and/or punch cards. I have FORTRAN on paper tape on my shelf. Unfortunately (or maybe fortunately), I don't have a PT reader.
Very neat! I built one as well, but I still need to find time to test all the expansion cards I built for it. ;-)
Did you test yet? Don't forget to test your expansion cards!
@@fractalMD I'm embarrassed to say that I still have not tested all the expansion cards! They're still all set-up within arm's reach of me right now, ready to be tested, but I haven't done it! I really need to do that. 🙂 At least I tested the PAL-1 itself right away. ;-)
Very cool! I still can't solder to save my life! 🙁
AFAIK, the RC2014 is supposed to be like the Altair and … one of the reasons people liked the Altair so much was it let them get one piece working and start a new part. SBCs you work on the one thing till it works. But in your case once you had the technique down, looks like you've just run with making lots of fun toys I totally am jealous of. 😄
(BTW, I've generally heard "yoo-art".)
Well done!
BTW, the PET, TRS-80, and Apple II made up the TRINITY, not trilogy. :P
I've been waiting for someone to catch that!
Nice. I recently started a similar journey, but built my own 6502 from scratch rather than with kits. It’s been frustrating, but very rewarding as I learned a lot along the way. Have you considered playing around with Arduino devices and other microcontrollers?
all the time!
And yeah, you need a new iron.
You aren't kidding. But we did get one!
I'm not able to get a serial-connection. I connected a FTDI-Board with 1200 baud, press RS on the PAL-1 and nothing happend. What could be the problem? Is a serial-connection only possible with an extension-board like ROM?
best advice I can give you is to search the PAL-1 users group archive for troubleshooting.
@@TaylorAmyShow So you don't know if this requires ROM expansion?
@@erikbartmann I don't think it does, no. When I initially got the serial connection working, I had disconnected all the expansion boards.
I debuted in 1974...not sure any cool computer stuff did, either.
Intel's 8080 microprocessor debuted in April 1974.
Sisters ?
best friends since forever