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Hi David Fry and myself have decided to attempt to recreate this vintage home brew computer project as a modern recreation in KiCAD. The plan is to...

All are 3.5" drives HH and they do have fans. Sorry no full height

Has a label over it so I guess no.

Wow, that's great news! Thanks! I take a closer look at these later tonight. Much appreciated! Andrew Lynch

I pulled them into Eagle, recaptured the board layout, cleaned them up a bit, and regenerated them from a real board layout. They all pass DRC and a...

Duplicate DMA and IRQ would need to be considered too. If the IBM 5150 has its original IBM 63W power supply, then two 'MFM' drives will probably...

Sure, but then I wouldn't need the terminal.

It turns out I was using shr wrong. I tried it the way you recommended Chuck, by putting 4 into CL, then doing shr al, cl, and it worked. But I also...

Okay, I will proceed with Amiga OS... when time permits. What are the SCSI drive formatting/management tools like?

Just to be totally anal, you could use the serial port on you PC to log the printer output....

Both terminals I currently have will log, but it's a little less friendly logging to a printer. And one will only work with a serial printer,...

Yes, a 5 MHz 8088. Page 2-66 of intel's 8088/86 manual lists it as an instruction, and it successfully shifts right 4 bits in DOS debug. Also, I have...

Seeing that the post was made 10 years ago and the poster only posted one message, are you really expecting a response? :)

The PC solution also offers a way to log a session or run scripts. One of the reasons that I no longer use terminals.

I'm a little puzzled about this: shr al, 4 Are you using an 8088? If so, that instruction doesn't exist on the 8088--only single-bit and (cl)...

Contemporary commodity hardware might be a better description. The RISC-V community has claimed that Linux will be the first OS to be...

Okay... etching done, here it is. The first pic compares an original Mark-8 board by Techniques to my 'new' vintage board stock, also by Techniques:...

Update: I guess it actually wasn't working the way I expected it to in debug. The carry flag was being set. I am changing my code now to use "and" to...

I have a couple VT-525's with DEC Keyboards I use with a MicroVAX once in a blue moon. Other then that I don't use them much (had 4 sold 2). I wonder...

During my 6 years in the USN 1966-72 all I wanted was out.

For tinkering with terminals and rs-232, consider investing in a breakout box, ideally with leds. Through all the 70's and 80's the systems I...

Macintosh Plus sold immediately, but I still have the cases, I estimate around $25 total without the CRT in the US, one is in okay condition:

How did this work out ? Did you find any of these guys?

Every one I've used was not much different than its same version number on other platforms. I just couldn't see the point in running them though. ...