Interesting information! I only have GRiD 1660s, so I have the first bag. In addition to the 1720, 1750, 1755, 1755 486/SLC and possibly the 1810, it also fits the 1660 and 1680 perfectly. It's made by Koszegi in South Bend, Indiana.
How unlucky. A while back I had three competent monitors (can't remember the brand, maybe Phillips), but it was a tough sell, selling them as a group. I thought it was nifty but no one local did. And can you imagine how much three Trinitron G400s in good working condition would cost? I'll keep...
There is apparently a Panasonic CF-580 on Etsy of all places: https://www.etsy.com/listing/1338492780/vintage-panasonic-cf-580-laptop-untested however, I'm not sure I want to extend my collection that far. I kind of like my L shaped model coverage.
Note of the existence of the 3830SL/C...
I have finally acquired a Panasonic CF-480! Still can't find an Ast version, or a DEC version of the 1680. I think I'm near the end of the existing models, though. I found that the German wikipedia contains info about the Siemens models...
This may be the final update to this thread! I have collected all the related GRiD models, and nearly all the related models in general. I recently found a reasonably priced 1680 on eBay, and then I found what was previously the most difficult to find, a CF-480:
It has the same plagues that...
The Morrow MDT-60 uses the same keyboard as the Zenith Z-29, Z-39, and Heathkit H29, and it's a pretty specific keyboard. I'm using one on my Z-39 right now. If that helps you find schematics or information about the way the keyboard works. I know it's pretty intelligent, it basically...
I can only speak for the keyboard, but the Morrow MDT-60 uses the same keyboard as the Z-29, Z-39, and H29, and it's a pretty specific keyboard. I'm using one on my Z-39 right now.
I found that the Siemens-Nixdorf variant is PCD-3Nsl for the base model equal to the 1660, and PCD-4NCsl for the 1680C equivalent with color and a 486.
The PCD-4NCsl follows the "reference design" very closely. The PCD-3Nsl, on the other hand, is interesting - it's the only variant of them all...