SEBHC

You're right Mike, so often the drive and controller get separated. Many of these sales seem to

All, If you're interested I found a source for the 25 pin right angle MOLEX connectors. Price is

It is an H19-A version with all the shielding, so I need to find the correct schematics. From:

Sounds great. I don't have schematics so my bad for not remembering. I don't think a standard

On 11/27/22 01:56, norberto.collado koyado.com wrote: > I can make them available cheaply. What is

Carroll design was an exact copy of the original board which had the connectors on the back of the

And at the risk of embarrassing you Les, your own notes on your site indicated this 😊: https://sebhc.

https://www.pololu.com/product/2836 I placed an order for 4 but did have a little trouble. You must

Website updated and as we find more information, I will keep updating the site. Link to C-H8

This region is always not used either for XCON-8 and PAM-37, so you can have your code there. 1000-

I guess if people use the ATX power breakout board that Les uses they could add PTC devices to the

The Mouser link is for the correct SamTec part. Get 'em while they're in stock! ;-) tas On

Douglas has some great observations about prototyping with wire-wrap, an issue that wasn't on my

I was always a little frustrated at the solution we evolved to for Y2K on HDOS. As you mentioned,

I see, forcing MEMR low (off) to disable all/any memory chips resident on the H17. And also

It's for the H-25 / Z-125 line printer. Joe On Thu, Nov 17, 2022 at 1:21 AM Mark Garlanger <

Added a buffer for the LED's. Attached is final board. Norberto From: sebhc@googlegroups.com <

I think I'm done with the 8080A board layout. Did final check out today and will order a few to

Great news and thank you for the photos. From: sebhc@googlegroups.com <sebhc@googlegroups.com>

For that first system, a bunch more photos including the other system on the table are on vcfed:

Douglas, yes I've disassembled the ROM code and identified some of the in/out ports that are in

Thanks for the replacement information. Norberto From: sebhc@googlegroups.com <sebhc@googlegroups.

It's a great board. Was very useful when I was demoing things at VCF. I could download multiple

About 40+ years old. I wonder if you can open the case and put a new tape in. From: sebhc@

So since I guess I inspired this latest creation with an observation and a question perhaps I should

Thanks. Obviously more current than my older information. From: sebhc@googlegroups.com <sebhc@

On Vol 1 (and to my knowledge, only Vol 1): cutting to the chase: the software has been preserved in

Great. Unfortunately I haven't found a repeatable way to trigger the problem… Sent from my iPad

I and others received an offer to buy these for $60. Apparently someone else took the bait. I'm

That is great for Todd Goodman to get brackets into his inventory. I forward to purchasing the