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REA Electric
Australia
Registrace 28. 12. 2010
Quick Tech about that ever I find on my desk.
37 years of overclocking. Since 1981 ;-)
A little about myself. I have worked in Pure Research, the Public Service, for Information Technology Companies including Microsoft, in the Banking and Finance Industry as a consultant since the mid 1980's. In the late 1980's was using AARNET with Telnet, Gopher, FTP in Unix and VMS before the Browsing the Web was a thing. Yep the good old day or maybe just the dark ages of tech :-)
37 years of overclocking. Since 1981 ;-)
A little about myself. I have worked in Pure Research, the Public Service, for Information Technology Companies including Microsoft, in the Banking and Finance Industry as a consultant since the mid 1980's. In the late 1980's was using AARNET with Telnet, Gopher, FTP in Unix and VMS before the Browsing the Web was a thing. Yep the good old day or maybe just the dark ages of tech :-)
Another no effort and easy unboxing video, a great addition to my workbench - DSE IC Straightener
Disk Smith Electronics IC Straightener and it is mostly in frame...
zhlédnutí: 28
Video
SYM-1 SYNERTEK BASIC V1.1 WITH TRIG FUNCTIONS (One take with no edits)
zhlédnutí 300Před 2 měsíci
Source: SYM-1 Technical Notes April 1979 Requires 323 bytes of RAM for Trig Functions Hardware: SYM-1 8K BASIC 4K RAM. Serial CRT Freedom 100 Terminal at 4800 Baud. SYM-1 BASIC Trig Examples: github.com/royedmund/SYM-1-SYNERTEK-BASIC Original source: 101 BASIC Computer Games www.roug.org/retrocomputing/languages/basic/basicgames
Synertek SYM-1 6502 running BASIC on a serial CRT Terminal
zhlédnutí 780Před 2 měsíci
Synertek SYM-1 6502 with 4K of RAM running BASIC on a serial CRT Terminal Using 2732 EPROM with modified pinout to match the original 2532 Masked ROMs Source: Synertek BASIC Reference Manual (1978) www.6502.org/trainers/synertek/ RST On Terminal Press Q Note maximum BAUD is 4800 and BAUD rate is auto detected on Pressing Q Then J0 or G C000 For a Warm Boot G0
SYM-1 6502 Single board computer
zhlédnutí 223Před 2 měsíci
After doing a few quick checks and then power up unfortunately it doesn't boot. So now I'm going to see if I can find some schematics and then we're going to start doing some troubleshooting on this system. Thanks to Jonathan Update: After replacing the 2114 RAM it now boots. The 65xx Chips are all okay. 6502 MOS 1Mhz CPU (Rockwell) 6522 Complex Interface Adapter (Synertek)
A quick experiment with using my Votrax TYPE 'N TALK with a BBS and ChatGPT
zhlédnutí 171Před 2 měsíci
Proof of concept Once I've sorted out a few issues I'll upload how this all works. Hardware Votrax TYPE 'N TALK Serial Text to Speech Synthesizer Liberty Electronics: Freedom 100 Terminal Raspberry Pi 4 Model B Two TTL to RS232 adaptors Teardown and circuit diagram by Kevin Horton. kevtris.org/Projects/votraxtnt/index.html Votrax History - Wikipedia en.wikipedia.org/wiki/Votrax
ChatGPT running on a Freedom 100 Serial CRT Terminal.
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ChatGPT running on a Freedom 100 Serial CRT Terminal via bbs.retrocampus.com
Ohio Scientific Inc. OSI Superboard II 600 Rev B and C1P 4-bit DAC Sound
zhlédnutí 188Před 2 měsíci
Breakout with Simple Sound effects SUPERBOARD II REV B 4-bit DAC Translated from German to English Claudio's web site Original source code: www.claudio.ch/SuperboardII/ I was wondering if anyone else has any examples of the 4-bit DAC sound for the OSI SuperBoard II Rev B?
Olivetti CRT DSM 1566 OLR (Philips tube) CRT HV problem?
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I'm not sure what to do? Is this a problem with the tube or is it a high voltage problem?
Slow TV - Gaming on the OSI Superboard II (C1P) 6502 computer system
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Slow TV - Gaming on the OSI Superboard II (C1P) 6502 computer system Pinball written in BASIC by ALAN STANKIEWICZ 1982 Load speed 300 baud Music: uppbeat.io/browse/music/calm
6502 Races - OSI SBII 600 Rev, Acorn Electron and Apple II Clone
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A very unscientific test of three 6502 systems. 1. Ohio Scientific Instruments (OSI 1975-1986) Superboard II was a single-board computer complete with keyboard, video output, and running the BASIC computer language. markcsele.ca/hobbies/my-vintage-computers/ohio-scientific-superboard-ii/ 2. Acorn Electron with it's weird and wonderful ULA ( uncommitted logic array) 3. Apple II Plus Taiwanese Cl...
DOS gaming on inappropriate hardware - AlphaServer DS25 Dual 1GHz Alpha CPUs with 8GB of Memory
zhlédnutí 677Před 3 měsíci
DOS gaming on inappropriate hardware AlphaServer DS25 Dual 1GHz Alpha CPUs with 8GB of Memory OpenVMS 7.3-1 Soft Windows from Insignia Solutions MS DOS 6.21
Digital (DEC) AlphaStation 255/233Mhz running MSDOS 6.21, really?
zhlédnutí 662Před 3 měsíci
OpenVMS 7.3-1 SoftWindows is a third party MSDOS/WINDOWS emulator from Insignia Solution.
Digital (DEC) AlphaStation 255/233Mz VMS 6.2 AXP Install
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Digital (DEC) AlphaStation 255/233Mz VMS 6.2 AXP Install
Disorder (Acorn Electron BBC BASIC) Joy Division Unknown Pleasure
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Disorder (Acorn Electron BBC BASIC) Joy Division Unknown Pleasure
DIGITAL ALPHASTATION 255 233Mhz Installing OpenVMS 7.3-1
zhlédnutí 61Před 4 měsíci
DIGITAL ALPHASTATION 255 233Mhz Installing OpenVMS 7.3-1
CRT Freedom 100 Video Serial Terminal playing termtris (Terminal Tetris)
zhlédnutí 207Před 4 měsíci
CRT Freedom 100 Video Serial Terminal playing termtris (Terminal Tetris)
TI-99/4A FinalGROM99, Speech Synth, 32KB Side cart Running Mega DEMO
zhlédnutí 141Před 7 měsíci
TI-99/4A FinalGROM99, Speech Synth, 32KB Side cart Running Mega DEMO
TI-99/4A My NTSC 5 pin dodgy Video and Audio solution
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TI-99/4A My NTSC 5 pin dodgy Video and Audio solution
Another dogdy TI-99/4A joystick adaptor video
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Another dogdy TI-99/4A joystick adaptor video
Don't have a Joystick for your TI-99/4A? Why not make your own?
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Don't have a Joystick for your TI-99/4A? Why not make your own?
An introduction to my TI-99/4A 16bit Computer from 1981
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An introduction to my TI-99/4A 16bit Computer from 1981
Australian VHS Tape Privacy warning and Rating classifications guide.
zhlédnutí 138Před 9 měsíci
Australian VHS Tape Privacy warning and Rating classifications guide.
Ravensworth Fire near Singleton 25th October 2023
zhlédnutí 122Před 10 měsíci
Ravensworth Fire near Singleton 25th October 2023
OPENVMS @ 25 (2002) What could have been...
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OPENVMS @ 25 (2002) What could have been...
Took me a moment to realize that your video was mirrored.
the amber CRT is so cool
You don't need special routines for that. Google "4tH compiler", choose Sourceforge, tab "Code" and navigate to "trunk-4th.src-apps-basic". The program you're using is sinewave.bas - but with integer trig functions: *SIN(), COS(), TAN().* the sinwav2.bas and sinwav3.bas don't even need those. You can even emulate a whole slew of transcendental functions in integer math, but in practice you need 64 bit wide integers. See fraction.bas if you're interested.
Dickrolled!! 😂
Great👍
wow... i had some very strong flashbacks to my high school years. nice!
Apple ][e \4/ life!!!!!
I'm intensely jelly. An old friend gave me his old SYM 1 with an ASR33 teletype. Eventually tossed the tty (probably shouldn't have but it wasn't practical at the time to hold onto it and was kind of self-conscious about firing it up whenever M&D were trying to watch TV one floor below me) and eventually donated the SYM1. Kicked myself later for not finding a way to do serial connection via another machine like my C64. Almost wired up an alphanumeric keyboard and created my own keyboard driver, but reliable program storage was a b***h. If I recall though, I think one jumper setting will allow you to boot directly to a serial connection, bypassing the onboard keyboard. One fun thing I did get working was the example oscilloscope marquee-style display in of the most dog-eared sym1 manuals.
Very good ! I worked on VAX 7000 Cluster. Best regards, GalileudoLinux.
Thank you for your video. I got a SYM - 1. Haven't connected to a laptop yet. Done quite a bit on the aa connector. Spent hours trying to get the on board display to what I want. In the end I found you have to unlock some protected memory..
The beauty of basic. It's good on the eyes.✌️
For newbies, but C is marvelously compact compared to assembly and BASIC, and of course you've futzed with assembly, you can appreciate C. And possibly look back in anger at the cruel tutelage of the Pascal-mongers (who are probably quite an endangered species these days)
Well done!
That looks better than I expected it to. Nice!
Update: After replacing the 2114 RAM it now boots. The 65xx Chips are all okay. 6502 MOS 1Mhz CPU (Rockwell) 6522 Complex Interface Adapter (Synertek) 6532 RAM-I/O-Timer (RIOT) (Synertek)
You’ve got a typo in the title…
oops, now corrected... it was well past my bedtime when I posted this.
The voice gives me Fallout vibes.
My grandfather added a DAC to his C1P, probably using the same modification. I've got most of his program tapes, and IIRC they include a program that plays the Stenka Razin melody. There's a chance I've already rescued it, but can't remember off-hand. I'll get back to you :)
I love it too!
That's excellent my friend ! I worked with VAX7000 OpenVMS ...
jajajaja i liked this video
Damaged fly-back transformer?
Maybe but I'm inclined to think it's not.
@@RoyAntaw - If you can't see it drawing an arc in a darkened room; Then that would suggest the break-down is internal somewhere, not a lot in the HV path :/ On the other hand if there is a issue in the low-voltage supply side, then that could do it too But the fact you can hear the fly-back "complaining" make me think it's in the HV path somewhere. But ... I'm nowhere near an expert on these kinds of things ;) Perhaps a meter on the low voltage supply side of the fly-back? See if something is dragging the supply down? Careful with you fingers though ... those things can "bite" quite hard
👍
You could totally make it sing by having a control voltage into the pitch circuit. You can get that control voltage from an Arduino or synthesizer with a CV output jack. If you ever get it to work, you should totally have it sing “Daisy Bell”, just like the old IBM computer!
I suspect the Electron won because Sophie Wilson is a freaking genius!
So chill
Fond memories of grabbing a snack while a program loads. We’re so spoiled now.
Keeping it real!
Awesome. The ball moves quite quickly :)
Check out my superboard ii to portable “laptop” build I just finished and posted on the OSIWeb general discussion forum :)
I really want to 3D print one of these cases and the microcassette is a beautiful touch too... Also what is the bodge next to the character ROM? Extra video memory?
@@RoyAntaw oh hey I saw your post and replied. Yeah it’s a job to make one. I couldn’t possibly help if you want to take the plunge. Yeah I wish I could toggle between 48c mode and back to stock. Hate to revert the mod since it was done by the original owner but I can’t get any software to work that supports the wider character column width and 2k video memory. It is nice to program yourself though.
Best regards from me and my OSI C1P in Christchurch, New Zealand... I won't give away which contestant we were cheering on! ;)
KEEN1.EXE ! Greatest Game of All Time! My First PC Game, Love It!
:-)
You know what? That machine needs to run Doom... :-)
This brings back so much memories, my workstation at work for many years in the 1990s was a AlphaStation 200 4/100
Many years ago, I used to play "Striker" on my XT clone. Then I got a 386 and there was no way I could play Striker on it, as it was just too fast!
This is great!. Didn't know it was possible. I have an AlphaServer ES45 that I'm yet to tinker with. This could be a fun thing to try with it.
This feels like using a Space Shuttle to go to the corner store for a bottle of milk...
I'm impressed. I really didn't think anyone would have bothered with a decent DOS emulator for OpenVMS. I was exposed to VMS shortly after DOS. While I preferred DOS and later *NIX, I really did like the versioning filesystem they used. I liked the window manager, though I couldn't tell if it was TWM or MWM. Is SoftWin limited to 640x480 and standard mode, or is it similar to DOSBox?
I was the opposite. I was using VAX/VMS at work, before I ever saw DOS.
Let's see Wolfenstein 3D!
Fun vid. The people responsible for killing Alpha have escaped justice for far too long.
Compaq or HP? or depending on how you view Itanium even Intel... There is plenty of blame to go around.
@@cairnex4473 What about DEC? Everybody loves to blame others after ruining their own companies
“hello i am very sorry”
Very cool! Definitely want to see games on this. I was hoping you were going to run Doom!
It was sugar on my energy bill.
crazy! where can i find the midi?
from microbit import * display.scroll("That sounds awesome!")
The thing I miss about these old systems is the social part. You could run a system status and see dozens of people and projects blasting away in timeshare, sense the system start to creep as new batch loads came on. You could message and collaborate with people online, hold late-night bullshit sessions. A sort of late-70's social media. I even once saw a continuous system status display being used as a marquee to announce scores in a campus basketball game.
32Mb RAM and not swapping all the time to disk. Now that's a stable OS.
I wonder if this is the terminals they use on Super Earth? 😸
Nice terminal! Please make a pull request when you're done
My freedom 100 is currently undergoing a complete rebuild most of the large cap’s in the power supply, bled out😂