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Greetings! I have a full KIM-1 stack from MTU, including about 6 boards. One that I'm currently missing (DOA and out for repair, hopefully) is the K-1013 floppy disc controller. If anyone has a K-1013 that they'll never use again, or has a line on one, please let me know! Thanks! Dave Plummer

Old thread, but I thought I'd show off my KIM-1 w/ MTU-K-1008 graphics board running this plot... slightly sped up :-)

Sigh. Someone monkeyed with a low bit toggle switch, and my bad for not visually confirming! Operator error, disregard!

Greetings! I have an Altair 8800 that was working perfectly; I R&R'd a board and now it won't boot into BASIC from ROM. I've stripped the machine down to just the 88-RBM and the CPU cards installed at this point: Here's what I know: 1) The first byte of the ROM is F3, or 363 octal. 2) With...

I managed to get it running - I had to remove my RQX3 controller as the QBONE takes its place, and they don't co-exist nicely. Photo of my PDP-11/73 and VT220a below! What are the odds I can get basic networking operational through the QBONE? If anyone has any pointers on how to get 211BSD to...

Greetings! I've installed a QBONE into my PDP-11/73, and can connect to it. I can boot RT11 using the QBONE script. Starting any other system, from BSD211 to VMS, I haven't figured out yet. My PDP winds up at this prompt: When I run the 211BSD script, it says this: I'm not sure what it's...

Yes, I'm in Sammamish! It's a quad M8190. 9278A backplane. Only drive is a cartridge tape drive, no floppy. I have a good MFM emulator board to take the place of a physical drive if needed, but still not sure how to get something ONTO that drive!

It's an M7555 in the 11/23. The 11/73 seems to have an M8639.

I received the PDP-11/73 that a viewer kindly donated, got it spiffed up with Simple Green and compressed air, and proceeded to power it up. Dead, not a whimper. So having just seen Usagi Electric’s experience with a very similar looking MicroVAX, I checked the RIFA caps in the power supply and...

I received the PDP-11/73 that a viewer kindly donated, got it spiffed up with Simple Green and compressed air, and proceeded to power it up. Dead, not a whimper. So having just seen Usagi Electric’s experience with a very similar looking MicroVAX, I checked the RIFA caps in the power supply and...

I have an MFM drive emulator, and was wondering if it's possible or practical to perhaps load some of the boot disk images from the pidp-11 onto the SD card and boot them on the PDP-11/23 Has anyone attempted this before? Or failing that, are there images of BSD or System V that I could...

It looks like a 9278 backplane has the connectors I need, whereas the 9275 that I have does not. I've ordered a 9278 in the hopes it will solve my dilemma!

I've assembled the guts of an 11/23 in a backplane and connected it to a front panel, and have it coming up to the boot prompt. I have an HD with an image of RT/11 on it (or maybe RTS), but the M7555 has a 50-pin cable and the drive is the standard 2-cable ST-506. I think there's a plane in...

I found a BA11 so I can likely assemble most of a PDP-11/23 but would still love an 11/73 MicroPDP... or any working system, the more blinkenlights the better!

Greetings! The BA23 chassis I just purchased was lost in shipping :-(. I have the rest of the internals, and can make a switch panel, but was really hoping to have an original setup. If anyone is tiring of their complete PDP-11/23 or MicroPDP, or any complete PDP system for that matter, please...

Anyone happen to have one kicking around that they're not using? I've got a dead one out for repair, but would like a spare!

Greetings! I just bought a Model 1 with expansion unit and ordered a floppy drive from eBay. Can anyone tell me what I need for cables to connect them? Also, where on earth would I get some kind of TRS_DOS image (or something better)? In theory I should be able to get tape images over via...

I'm stoked - I found and purchased a Model 1 Level 1 4K unit with a 0K expansion unit and monitor (ie: the oldest and most ancient system available), a 26-1001. Anyhow, it was still in the original packaging, still in the Radio Shack boxes, cables still in wrapping, everything. It had been...

The first computer I ever touched and tinkered with was the Model 1, and while I went on to write a lot of x86 code (I was at MSFT on MS-DOS) I've never owned a TRS-80 until now! I managed to find a Model 1 with monitor and expansion base unused still in the original boxes, so once confirmed...

I'm hoping to use CBMCommand to copy files from a petSD+ to my 8050. From the docs I don't think it can copy entire 8050 disks, but it should be able to copy files... stop me now if anyone knows that doesn't work! In any event, I'm stuck pretty early - I don't know how to move between panels...