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I am "getting out" of the Tandy EX/HX game, and I am doing one very last run of my Tandy 1000 EX/HX 3-in-1 Upgrade Board. These boards are an all-in-one upgrade solution for people who just want to play XT/Tandy era games, and it provides the following upgrades: 640kb System RAM 96kb of Upper...

This really came out of left field today, but there is an old General Instruments ANIC-A for sale on eBay right now that seems to have some documentation... It is very expensive, but you might be able to haggle with them. https://www.ebay.com/itm/165376540588 Unfortunately, I cannot help much...

Ah! You have it working! Did you happen to make a note of the error(s) in the schematics I published? Ive been meaning to get back to troubleshooting, but free time seems to be a very fleeting resource for me lately.

I apparently never replied back here, but my adapter is now complete and I have been selling them on eBay for a little while now. I just made another batch of them, this time with shorter cables, and they are working out great!

I do have a solution, I am just working on the spit and polish before it is ready for sale here.

The new version has arrived, and is a good amount smaller than my first. I whipped one together and it works well. I just need to find a source of DIN7 cables that have consistent wire colors, as each and every cable I have has a different pattern. I also need to pick up some heat shrink...

So, I have not yet "given up" on this reproduction, but it is currently on the back burner at the moment... In the meantime, it looks like Scott Baker published a design for some PS2 to Tandy adapters late last month. I laid out a variant of it which is quite a bit smaller and is designed to...

The boards arrived, and I quickly slapped one together (with the sockets that I have.. I ran out of 24 pin wide sockets).. only to find that I never ordered the transistors. I ordered them the other day and they should be here shortly.. but significant progress has been made.

I am on a side mission to recreate the Tandy 25-1030 Enhanced Keyboard Adapter for the Tandy 1000/A/HD/SX/TX computers. I borrowed such an adapter, stripped it down, scanned it, and duplicated the layout in Sprint Layout yesterday. I am just putting the final touches on it now, and I will...

The first draft boards have arrived. My 1000A and the logic chips needed to build this board will arrive tomorrow, so I will have initial testing done sometime tomorrow afternoon.

My first pass is complete. I sent it off to be fabricated for my initial tests.

I am announcing that my Tandy 1000 EX/HX 3-in-1 Upgrade Board as complete, and I am currently assembling boards for my production run. These boards are an all-in-one upgrade solution for people who just want to play XT/Tandy era games, and it provides the following upgrades: 640kb System RAM...

The connectors arrived yesterday, and while I have not inspected every single one.. they seem to be perfect. They have a snug fit right out of the package, which I am very pleased with. The company I used is called Shenzhen RealRun Electronic Co. They typically have a MOQ of 1000, so I did...

I do not have a photo of my HX set up, but I do have this one of my TL2 and a Panasonic branded version of the 3000NL.

I too finalized my design. My final prototype arrived today, and I quickly assembled one. I had to tweak the placement of one part and fix some of the silkscreen, but all in all it functions perfectly. I purposely did not flush mount the passives to help in disassembly if the need arose, so...

My first prototype of my 3-in-1 board arrived yesterday, and I quickly assembled one. It turns out that the footprint for my CF card slot was completely wrong for the part, so I did not assemble the XT-IDE portion of the board. I also apparently put the PLUS connector 2mm too far to the...

I am seeking a Panasonic Business Partner FX-1650 computer. I would accept a 1750 if I cant find anything else, but I greatly prefer the 1650. I do understand that the Tandy 1000SL2 is essentially the same thing, but I am purely interested in the Panasonic. I do not care if it has a keyboard...

It is nothing more than a XT-CF-Lite board adapted to fit into the PLUS slot. Memory was next on my "to-do" list, and I am open to trying to combine the designs to one board.