This historical research and recreation stuff is interesting! I found an announcement from Lifeboat Associates for "Altair CP/M" in the July 1979 issue of...
Thanks Tom for spending the time and effort to transfer and post the disk images of some of your Altair 8 inch floppy collection -- great stuff! I downloaded...
i would like to make a suggestion. when replying to a post, it might be useful to remove all the stuff to which you are replying. it's somewhat time...
I recently installed an MBL PROM to exercise several serial port combinations by loading big files like 8K BASIC. My first combination was very standard - 8N1...
(cross-posted from the MARCH mailing list) All, I've been going through and cleaning up/testing some of my spare S100 boards. Looks like I've got more than...
I have created a new folder in the files section titled "Burcon (MITS) CPM." This folder contains an overview of Burcon CPM, a commented disassembly of the...
I'm repairing an 8800b that was dropped on the transformer corner. I've been looking at Altairs with upgraded power supplies. I've seen more than one Altair...
Hey All, With the raging success of the ME1702/A EPROM programmer (dozens sold), I decided to design a programmer for the National Semiconductor MM5204Q EPROM....
Looking to program some 1702A EPROMs? Frustrated that all of the so-called 'universal' programmers can't program a 1702A? So was I... I have just completed...
Should I scrape off some mask in the area and drop some solder on, or should I use one of those silvering pens they sell and then cover it with a green coat...
I finally took mine apart to get it running and underneath there are a lot of jumper wires and 2 cut traces. My sol had an 80 column video card. A duotronics...
Does anyone have a copy of CPM 2.2 running on an 8800 using the original Altair floppy drive (88-DCDD)? Ideally, I'd like to see the CBIOS source, but even a...
So back in the day it was common to have to patch Basic and other Mits software to work with different IO or with a video card. My question is how was this...
I'm about to write routines to transfer an image of a floppy disk in an original Altair drive (77 tracks, 32 sectors per track, 137 bytes per sector) to a file...
Hi guys, I've finally put my remaining S-100 boards on eBay for anyone interested: MITS 16MCD 16K Dynamic memory card with Intel chips MITS boot PROM board...
Nobody in my circle of friends or family cares about this, so I'll post here! I purchased a non-working 8800b off eBay recently. The computer and boards are in...
I apologize if this question has already been answered on this forum, but I can't find a clear answer: Is there a source for 8800 card guides? If an exact...
Any interest in a programmer for the National Semiconductor MM5204 EPROM? This is another early PMOS EPROM that can't be programmed by most "universal"...
While working on a getting an 8800 with 64K of RAM working, I was able to get 8K BASIC V4.0 up and running, but 4K BASIC V3.2 would hang every time I pressed...
I sent a message about this last week but it vanished into the ether. So, would anyone be willing to hazard a guess as to the value of a full set of MITS...
Based on the schematic for the display/control board of the original Altair 8800, and the Theory of Operation Manual, the 8800 single-steps one machine cycle...
I know I can't program my 8k bytesaver from the front panel and need the software to program eproms. However with the 32k Bytesaver according to the manual you...
I'm looking for the 2SIO port 0 version. It's the monitor that can fit in 512 bytes and doesn't use any ram. I'd ask Dave, but this is a modified version of...
Well finally got power back during the week and had some time today to go back and finish this little project. Success!!! (with TeraTerm, still need to work...
Hi Guys, I have a problem with an Altair 8800: deposit does work but when I want to recover the value from memory with examine too many lights blink. I tested...
over the serial port. I have Zterm but I think it's messing with the binary. The only option I see is to "send text" other than Kermit,Zmodem Xmodem and...
