exxos's Atari, Amiga & retro forum

rubber_jonnie wrote: 30 Oct 2025 13:04 A lack of smoke is always a good result :)

Indeed it is !

Long time no updates on my Tandy, so here we go.

First, I have upgraded the serial port to a fully fledged one.

Sorry, I didn't take any pictures during the process, but for those who are interested, here's a link to a forum explaining how to do it:

https://forum.vcfed.org/index.php?threa ... 240/page-2

(Just scroll down a bit).

Using an OPL3LPT in stereo and ZIP drives will be a piece of cake now.

And second, I'm planning to add an 8088 FPU to this machine, so I'm just experimenting for now.

Here are some pictures:


Since I can't fit the add-on board directly on the motherboard, I had to build a flat cable relocator.

So far so good, but I'm still waiting for the FPU to be delivered.

I found this project (originally for a EURO-PC) here:

https://hackaday.io/project/202419-an-8087-co-processor-extension-board

Still have some PCBs left...

That's all for today.

The Tandy is looking great, nice to hear some updates from you, it's been a while :)

Yeah, I've been quite busy these last few months and I don't have much time for my hobbies.

HigashiJun wrote: 01 Mar 2026 10:18 Yeah, I've been quite busy these last few months and I don't have much time for my hobbies.

I know the feeling...

rubber_jonnie wrote: 01 Mar 2026 10:24 I know the feeling...

:lol:

Ok, some fresh news after a busy day.

Since I wasn't able to read my disks, I had to RF shield my flat cable.

Everything is back to normal now. :D


And just some minutes ago, the FPU arrived !


There was no smoke when the Tandy was powered with the FPU in the expansion board, so I can sleep peacefully tonight.


I have now to test whether the FPU is recognised with Microsoft Diagnostics.

More to come later.

rubber_jonnie wrote: 01 Mar 2026 10:24

HigashiJun wrote: 01 Mar 2026 10:18 Yeah, I've been quite busy these last few months and I don't have much time for my hobbies.

I know the feeling...

Exactly the same here. :lol:

HigashiJun wrote: 02 Mar 2026 11:56 Ok, some fresh news after a busy day.

Since I wasn't able to read my disks, I had to RF shield my flat cable.

Everything is back to normal now. :D

And just some minutes ago, the FPU arrived !

There was no smoke when the Tandy was powered with the FPU in the expansion board, so I can sleep peacefully tonight.

More to come later.

Its always great news when things start moving again.

Well done!

:girldance:

mrbombermillzy wrote: 02 Mar 2026 15:38
Its always great news when things start moving again.

Well done!

:girldance:

Thanks, but the journey is not over.

I still have to cram all this stuff in (not to mention the RAM board already installed):


8-)

HigashiJun wrote: 02 Mar 2026 23:04

mrbombermillzy wrote: 02 Mar 2026 15:38
Its always great news when things start moving again.

Well done!

:girldance:

Thanks, but the journey is not over.

I still have to cram all this stuff in (not to mention the RAM board already installed):


Expansions.JPG


8-)

That's going to be one stuffed Tandy!!!