I'm an IT professional and formerly an electronics technician with an interest in vintage (old) computers and electronics. I'm not a professional RU-vidr, I started the channel just to share videos with friends and family and it grew as I got more into the retrocomputing community. My videos are mostly focused on my hobbies of restoring 8 bit computers of my youth and occasionally maybe some vintage Hi-Fi audio gear.
I am Steve Barham .. Chuck is right, I did program them into the Petunia myself off of the sheet music. It is soooo amazing to hear it work again, as my PET 2001 got fried back on 1983.... 😢😢😢😢 I am so glad the board still worked.
I had a device for my 64 here in the UK that allowed me to copy commercial C64 tapes - you needed two datasettes - both connected to the device that plugged into the C64 cassette port - press play on one record on the other - perfect copy of the commercial software - no copy software required.
Good times. I worked out the turn of the screw depending on the angle of the notch on the head screw. Somewhere between 0-90 degrees. Anymore than that you've went too far. Whole lot of trial and error but it was all part of the fun of cassette loading backup tapes.
"The DEC VT 100 terminal is notoriously linked to the Therac-25 radiation therapy machine's fatal malfunction due to faulty programming code. It is exactly the same terminal it's just the cheaper variant of it .
Your Pet is really pretty. Looks like new on this video. I have four pets, but only 1 working. Trying to learn how to find the errors and run diagnostics on them.
Would be nice to see a full-screen application, where the cursor positioning, bold etc. is used, something like WordStar or dBASE or whatever they equivalent for the DEC PiDP-11. :) Thank you, a great video.
I suspect that this unit has not seen a lot of use back when it was new and since. Almost all of the model 1's had the silver paint on the front edges of the unit wear from just a a thousand hours or more of use.
I'm no expert by any means, but my understanding is that the Apple II series was very well made, almost "bulletproof," and generally very easy to repair.
I have this ROM save/load program, which loads a game in just 15 seconds or so. It's really awesome. I wonder if anyone else knows about it? You first load the faster loader, then type SYS 4100 and then press the reset button. SYS 4103 saves a ROM.
I was 8 years old in 1979 when my dad brought home a brand-new 2001-8. Even though we got the C64 a few years later, Dad never stopped tinkering with the PET, and it lasted until he passed in '02. He too, was an engineer, and I owe him and that little machine a whole lot. Thanks for this....
Nice video!. I have the Commodore PET 2001 with the black and white monitor. It has been working fine until recently. Now the boot up screen where it says "***COMMODORE BASIC***, 7167 BYTES FREE, READY" the words/letters/numbers are broken up as if a line space has been printed on the screen. So it will be the top parts of the letter, a space, the middle parts of the letters, a space, the bottom parts of the letters. Hope that makes sense! Any ideas?
The first PC I ever used was an Apple II Plus my first day of high school in 1982. I was hooked. Although at home I had all Commodore. Be sure to get the new Yellowstone card for the IIe.
My first computer experience of any kind (that I remember) is using a college PDP-11 on VT-100/102 terminals. They also had VT-52s with the wacky buzzer instead of the speaker, and some other brand/model I can't remember-- black and metal... Olivetti maybe?
Hey Chuck. Didn't realize you had a video on this, found it while I was googling when my pidp-11 died (sd card corrupted after multiple power outages - important note, back up the sd card, it's a pain to make a new one unless you use a pi 4 as the new image is for that). Anyway, the base... what did you use for that.. did you make something different or is that some kind of sticker or something around the wood?
Just black spraypaint over the included wooden base. I printed the 'digital' image, "laminated' it with packing tape and stuck it to the base with double sided tape. I did make an image of the SD card not long ago.
Apparently the company that produced that voltage regulator is no longer in business. The website is a dead link. The cooler temperature made that mod well worth the work.
I'm getting a 500 internal server error, but google still has them in search results. Hopefully it's a temporary web site problem. www.google.com/search?q=ezsbc+5v+regulator
What caused the cascading failure? Replacing the diode and cap, followed by resistors seemed related to another issue. If the diode has failed, do you suggest replacing all at once? Diode - cap - resistors?
Excellent video. Wish I'd seen this before I fixed my 4032 12" monitor board. I ended up verifying all of the waveforms from the service manual and changing all the electrolytic caps before finally finding the R752/R753 resistors. If I ever repair one again that's the first thing I'll try!
Após usar realizar o processo de retrobright basta apenas utilizar spray de verniz incolor fosco com proteção UV, o amarelado não volta mais, é necessário realizar 3 aplicações para criar uma camada de verniz forte.
