kheller2

I said this many pages back. yes, people are crazy on eBay. Case in point: https://www.ebay.com/itm/313835006515? $1200 for a 65XE, $100 shipping. But I think it does come with a monitor, and 2 game cards.

@Dropcheck How are things going?

I need a 1400XL and a 1200XL. Of course custom ones are nice too, like a 1250XL, 1200XLS, ...

@Beeblebrox Are these 600XL board different from the one you converted here, which is a CHELCO REV 8A? I was comparing it to this PAL 600XL that was for sale:

There should only be two main 1050 bezel types, as there are two different 1050 cases: tandon vs world storage mechs.

Oh, all the DOSs are okay. In fact, I used Atari DOS 3 for a while before switching to Sparta with a USD kit. Atari DOS 4 was some historical fun playing. Even DOS XE was briefly used, but I sort of stuck to Sparta land.

I think there was a large effort involved in getting the proper DD disks created for Indus and ATR. It might be better to stay in the DD format, but that wasn’t Atari’s direction with the 1090 or sweetpea.

I'm assuming that the same software that runs on the ATR8000, INDUS and even C128 would work just fine once the IO is worked out. Assuming we get them converted to the 1050 ED/SD format? Another thread that was used to build disks :

The motherboards for NTSC and PAL are identical, just the components vary -- like every XL

Interesting that the 600XL service manual has slightly different instructions from the original schematics, I think. PAL should have R140 removed, R200 removed and C200 should be 100PF not 4.7PF (NTSC).

Assuming these are Z80As in the 1090, there are plenty of Sinclair 1000, TRS80s and Colecovisions to contribute

But there are DOSs to avoid... like 3, and 4. 😇

So here is where I need some education, not being that familiar with what sophia2 provides to a PAL system. This is what I've gathered: You have two NTSC 600XL boards you converted to PAL. You know PAL 600XL composite output (on PAL manufactured boards) is great. You even have a dead PAL 600XL you can use as a reference. You did not install the passive components needed for PAL video because sophia2 provides these? That's where I'm confused. According to the official, and probably not correct schematics, PAL boards should not have W2 and R140. W2 being removed feeds into U24 and also needs a R120 pullup. W2 is what ties the GTIA OSC line through the crystal Y1 and then feeds into GTIA PAL line.

I would be interested. But realistically how many of these do we think people would ever want? 100 (and I think that is a stretch). Z80s are laying all over the place in tons of things. I'll spend $500 to hoard 50 of them if that's what people need to keep this project going. I never even booted up my Indus CPM system! But sure... I'll pitch in to help.

The MIO and BB would probably have a problem since the V: and T: and D: are bus devices.