Like that z80 card, I has a 8080 out of an old winchester years back as a teenager, don't know where it went, wasn't ceramic though.

Wow. Corvus gear. I used to work for the Australian distributor and provided tech support and services the gear too. What a blast from the past.

Your Giving me High School Flash Backs....

we had a 20MB Corvus serving 20 //e's. it was a good system.

I will have to keep an eye out for this!

I have never seen a Corvus OmniNet before, this is pretty sweet little system.

Update: I mentioned in the video that the Booti uses SmartPort to emulate up to 8 ProDOS hard drives. The Booti does also support Block mode.

Very interesting with all that stuff :-) Should you find a keyboard for a Commodore 8032-SK, and have no use of it, please let me know. :-)

Very cool...I have an SX-64 that had been working...When I powereed it up last it had not video but that is a project for a nother day for me. Good luck with yours I will be watching.

Good Luck with that SX-64!

Awesome stuff!!! Thanks for sharing!!!

Really Cool Setup Sir! I've never had the opportunity to use a Machine like this, its awesome! I need a Floppy Emu to finally get my Retro Box(s) runnin the way I want New Sub: Dryden, Michigan

I originally recorded this video about a month ago. Since then I have gotten ahold of a PCPI compatible CP/M card that was made from Alex Freed's design and runs at 20Mhz vs. 6 for the original applicard. I will include this new card in my long form Apple CP/M video. If anyone has particular CP/M software running on these systems, let me know and I will try to include in that video.

Thank you for using a tool to lift the metal tab, and not using the iron as a chisel...

Nice upload, Apple II was a great machine designed by a talented genius 👍

Along with the CoCo SDC, you may want to look into obtaining a FujiNet device for the CoCo-the FujiNet device allows for network mounting of disks as well as running locally off an SD card

I would try to find a newer version of the vic2 the one from the shortboard (8566) and do a small modification on the mainboard to get the 5V for pin 13.

Nice find. Your IEEE interface was most likely used with the dual drive MSD you have there. It was faster than the serial cable. it also allowed you to use other PET drives. Your Glink is a RS232 User Port adapter. I'm going to guess the board where you sate vicmon1 and vicmon2 is a VIC-20 multi-ROM adapter board. Some of your chips like the 6502 are used across commodore machines, not just VIC-20. The 906114-01 chips are not ROMS, they are PLA chips. They are typically the first chips next to RAM and SID that go bad on Commodores which is why you prob have a bunch of spares :) Hope this helps.

Some nice stuff there....

Re: the Tandy Color Computer for loading software: If your Coco already has at least 16K of RAM and Extended BASIC, get the Coco SDC (available from both Zippster Zone and Retro Rewind, whomever has it is stock). This emulates both floppy and hard drives using SD cards, and some other enhancements. Then hit the Color Computer Archive - they have a special ZIP file available that downloads a couple of thousand programs specifically set up for the CocoSDC. It also has an option directory viewer/program launcher (SDC Explorer) that runs on the Coco natively and is one of the best of it's class for all 8 bit machines.

dude

Legalize dumpster diving!

I would love a friend like that. I like video recorders, almost anything that's not VHS. My misses on the other hand, is probably very glad I don't have a friend like that. Enough video recorders already.

Man you are so lucky to have that friend, the US ewaste system is so much better than the UK one. Thanks for sharing.

This might be one of the first NAS devices.

The school I went to for 2nd grade in 1990 used this for an Apple II computer lab. In 3rd grade, it was localtalk with mac server and Apple IIs with the workstation card, which I believe you also made a video about. I am so excited for the follow up to this!

I have never seen one of these! Thanks for sharing!!

My first thought on the 'dead' keyboard, is it's defaulting to sending keystrokes out the serial port - I havent tried to read that manual you showed, I'm just assuming there is a toggle between local and remote operations somewhere and its currently in remote.

That's some really cool and robust computer! I can only imagine the splendid touchyfeeliness of its keyboard, it's just beautiful. To the VCF with it, please :)

I suspect that the processor isn't running and the display is showing whatever it last showed when the machine was switched off. CMOS static RAM draws very little current and it is possible that the battery kept it going all this time. It would be interesting to make it work properly and perhaps see what else is in the memory. If you fancy having a go, start with the basics (power, clock and reset) and work from there. Good luck!

Sorry, that EPROM is a One Time Programmable. Not an EEPROM, no UV window so you can erase it. So unless it's got major blank spots, it's useless (or you got some acids to dissolve the plastic above the die). There's an SMD 6116 2K SRAM chip above it though. Useful for fixing random old computers.

Mystery board: There's (at least) two two-row connectors on the side where that clip thingy is. It must've plugged on top of another similar board. Also there's a small connector next to the PRINTER PA writing. Maybe they cut them off before epoxying. That board clearly was part of a system. That C64 has the original Signetics PLA which doesn't fail as often as the MOS branded one. They get crazy hot though. Sucks that it's missing some parts or you could have just drilled out the ports and try using it.

there's 8 of these 2k RAM chips so 16k of battery-backed RAM (although yeah sure the battery may or may not be connected to all of them) so there's almost certainly gonna be a lot more text stored in those ICs. Don't unplug the battery or any of these ICs before you have a chance to dump them. You should do that relatively soon (don't let it sit for another decade or two because who knows how long that battery will last) (that RS232 port is probably still gonna be the most convenient method of doing that - gotta fix that keyboard. The computer part is highly likely to work as it will have to initialize the CRTC if there is one and copy the memory contents to video RAM. From the fact some of the LEDs extinguish after a second on powerup, the CPU is almost certainly working) (you should also eventually dump the ROMs which are socketed and sit next to the battery backed RAM chips - these can go bad with age as well, so dump them while they're working. I've dumped the ROMs of a prototype pinball machine which wouldn't run with the ROMs of the production model - the solenoid drivers were on a different address in CPU space - a few years later one of the ROMs died. Good I had it backed up, it was likely the only copy on earth.) These 2k SRAM chips were pretty popular for low power/battery backup SRAM, but not used for that exclusively. I've seen those used in arcade machines for mixed uses (high score saves, just plain RAM, Video RAM) btw. AFAIK bubble memory needs to warm up which takes longer than the CRT to warm up so there being text on the screen right away means no bubble memory in the system. Lol at hit the dislike button twice

that port next to the modem looks like and most likely an RS-232 serrial port

Wow, when they said non-volatile, they sure weren't messing around! My initial thought was that since it was a terminal, maybe it was something silly like a local echo setting preventing the cursor from moving, but looking at that manual it's a weirder thing entirely. It almost seems more like a word processor that's made to transmit the text in the buffer all at once when you whack xmit. Which I guess matches up with the letter the former Xitron employee wrote. Yes, the port is to hook something else up to, it's just a plain old RS-232 serial port and you can see that the switch is set to RS-232. I presume if you flip it to modem you can try to see if the coupler will make beep beep noises. If you can figure out what's up with the keyboard, you might be able to get that to talk to another modem with the coupler and an old handset!

That keyboard is probably a Keytronic foam and foil type. The foam in those has a tendency to deteriorate, and then keypresses won't register. Best way of fixing that is to make new foam-pads for each key.

Nice upload! 👍 According to the datasheet, the TC5516APL has a standby current at 25degC of 0.2uA! So a mere 1.7mAh/year, its quite possible the backup battery has kept its contents all this time...

What a time capsule.

Awesome find. Where did you find it?

My TRS-80 Model 4P is one of my prized possessions. I had to replace the power supply, and both floppy drives, and added a FreHD for convenience, but it's a delight to use, even if I need a lot of muscles to move the thing around!

No way, now way... By any chance is that battery 3.6 Volts? It looks like a battery I remember from a Commodore Colt motherboard.

Thanks for the good info-can't wait to see it running! I'm looking into one of these myself for my GS especially, & maybe my IIe.

A TRS-80 Model 100?! *Clicks Subscribe*

160MHz CPU but still hobbled by the Valkyrie ASIC from the Quadra 630 line.

I have seen a few of those back in the day, just never got to use them!

Never had a Model 100 but I did have the OEM version, the Kyotronic 85. I also had an NEC PC-8300 but it came with a custom application ROM in place of the system firmware and I never managed to get a copy of the OEM firmware.

Good luck

some advice: Do not flick the switch mono/colour when computer is ON. Be aware that the case screws are NOT same lenght! Front (under keyboard) are shorter, you will damage your case if wrong length is used. When disassembling, it is easier to remove those 3 screws that hold the mainboard in case and remove the whole assembly (shield+ mainboard) for easier access to tabs. 3 screws are accessible via 3 round holes in top shield. As for accessories, have a look at SidecarTridge, its the newest addon to ATARI ST peripherals and it can emulate a lot of things, floppy, HDD, ROMs and cartridges. Swiss knife. If you dont plan to go very very deep with ST, then this should be all you need, and it will save you money. Edit2: The SidecarTridge is a evolving homebrew project, so some things may not work properly, thats what I meant that if you wanna go very deep get proper floppy/gotek, -SD2ACSI- SD4ST or UltraSATAN for HDD. For monitor, if you want colour you need a monitor/TV that is able to do 15KHz horizontal frequency (there are some lists for LCDs that work in internet), the mono works on any VGA since it is 31KHz. There is also a small jack on the adapter, that is for sound since VGA cable does not provide sound lead, just use any active boxes. If you have any questions, just ask. BTW, good catch, you got 520ST one of the first units without later mods. If Im right this Rev A. was replaced around late September 1985, so yours is one of the launch production. Have fun! Edit: you can use arrows while holding ALT key to emulate mouse, ALT+SHIFT is slow moving cursor, ALT+INSERT is the left mouse button, there are solutions to use modern mouses with ST, go to Lotharek page in Poland or eBay.

Wow a c128 so nice to see :)

I just got that adapter yesterday!