SEBHC

I've been working with Joe Strosnider of "Joe's Computer Museum" to get his

Excellent! On Wed, Dec 4, 2024, 12:03 AM tim primal-bits.com <t...@primal-bits.com> wrote: Joe,

No. I didn't share the $600 cost estimate earlier. I figured no one would be interested. You

Thanks for the UV tip Royce. I hadn't even considered that approach. I'll have to try that!

Usually a good time to stock up on regulators or other parts from Pololu… Sent from my iPad Begin

Ok so this may be a bit wordy…. When the H8-5 board came out (1977) the accompanying terminal would

Right. I've disabled the 8250. I'm going to park all this for now. Spent too much time and

So I forget if this is a pre-existing setup? Did you start with a machine that already had the XCON-8

The H-8-5 serial board is really quite nice. Years ago I was only familiar with the H-8-4 (quad 8250

Fantastic! Maybe post some pictures. I forget if you have a way (other than front panel keypad) to

Tx. I may need to scope mine to see what's going on. From: se...@googlegroups.com <sebhc@

Nice work Dirk…! From: se...@googlegroups.com <se...@googlegroups.com> On Behalf Of Dirk Prins

The two diodes are pretty much the same. The 1N2071 is rated 600v,0.6Vf at 0.75a. The 1N4007 is rated

Glad you've finally discovered this capability, Joe, and glad you're finding it useful! I

Joe, Rather than wasting the 28C256 adapter, I decided to order from the Atari team the following

Amazing Dave. Truly mind blowing to think about how that could be built, maintained, and repaired. A

Ok tz On Sat, Oct 26, 2024, 10:21 AM Joseph Travis <jtravi...@gmail.com> wrote: Or if VPORT

I agree that something like that is happening. The name for that program is arbitrary (throw away/

SMC KR2376 -XX Keyboard Encoder with ROM Datasheet https://deramp.com/swtpc.com/CT_1024/KR2376.pdf

Those intermittent failures of the memtest could easily be the bad DRAM chip you found. The monitor

Wow. Tantalums on the +/-18v side should definitely be rated at least to 35V. I just checked on one

thanks Terry. it was not the xfmr..it was my age. wrong primary wiring. works now. appreciate the

On Thursday, October 10, 2024 at 8:23:10 AM UTC-7 Norby wrote: Both boards will work fine with the H8

Thanks Terry I have Remarks 7/1990. I'll check it out. Also, I have a H150 so that makes sense

Looking god so far: Norby

Stock photo from a recent article in The Economist about the longevity of Excel. I've seen

Beautiful system! Thanks for sharing such priceless pictures.👍 Get Outlook for iOS From: sebhc@

Yes or maybe even one of the hobbyist magazines. I notice more and more articles on “retro”

Congratulations on such great layout! Why not use the 27/28C256, so that you can have PAM-8 or XCON-8

So I agree one of the cool things about the H9 is it's stylistic compatibility with the H8, H11