[Coco] Coco 3 - 1 meg or 2 meg upgrade?

[Daniel Campos]

Em 17/09/2013 19:57, Al Hartman escreveu:
> Daniel,
>
> I love the clone computers. Especially the LZ Color 64. That case 
> looks like the silver case, just painted grey.
>
> How compatible are the two clones with a standard Coco?
>
> - Al -
>

Originally, the Color64 came with 300ns RAMs and OS9L1 and NOS9L1 frozed 
every time when I tried to load them. Someday I changed the memory for a 
200ns batch and now OS9 and NOS9 works just fine. Taking that, it's full 
compatible and follows almost the same schematic of a CoCo1. The most 
significative diference for a normal CoCo is the professional keyboard 
made with reed switches. Pure pleasure to type.

The MX-1600 was a poorly made clone. As you can see, it was made with a 
single sided PCB and bad sockets. The cold welding problems are 
frequent. I already bought new sockets to change on the board, but is a 
delicate process. That said, it has good features like a pause switch, 
monochrome video ouput and standard conectors for Atari joysticks (no 
adapter needed).

Daniel


> -----Original Message----- From: Daniel Campos
>
> Em 17/09/2013 16:54, Bill Pierce escreveu:
>> Aww shucks... just describe your whole Coco collection... 1, 2 or 3. 
>> What drives, printers, outboard gear, memory, MPI, DW3 or 4 etc?
>> It would be nice to see the different setups people are using and 
>> what you have lying around.
>
> Ah...nice topic! My collection is nowhere near as great as yours but I
> have some good items. Let's go:
>
>     - CoCo3 512Kb with original Tandy expansion module and RGB sync mod
> (to work with RGB monitors with CSYNC input)
> https://picasaweb.google.com/109345699838454178536/TandyColorComputer3
>
>     - KoKo2 16Kb original (26-3136A) expanded to 64Kb.
> https://picasaweb.google.com/109345699838454178536/TRS80ColorComputer2
>
>     - LZ Color64 - Very rare brazilian CoCo clone with 64Kb, internal
> installed 26-3022 controller and converted to composite NTSC output.
> https://picasaweb.google.com/109345699838454178536/LZColor64
>
>     - Dynacom MX-1600 - another rare brazilian CoCo clone. Also
> converted to composite NTSC output.
> https://picasaweb.google.com/109345699838454178536/DynacomMX1600
>
>     - Dragon by Tano with DragonCoCo ROMs and Lafumat's Disk Interface.
> https://picasaweb.google.com/109345699838454178536/DragonByTano
>
>     - CoCo2 PAL french model with AZERTY keyboard (arriving soon!)
>
>     Loose items:
>
>     - FD-502 "like" Disk Drive:
> https://picasaweb.google.com/109345699838454178536/ResgatadosDasFeirinhas#5892498976948350994 
>
>
>     - Serial to Paralell "Briteface" interface:
> https://picasaweb.google.com/109345699838454178536/LZColor64#5800838730476615074 
>
>
>     - 2 Prológica joysticks (original from CP-400):
> https://picasaweb.google.com/109345699838454178536/LZColor64#5800838726511759906 
>
>
>     - Kraft Deluxe Joystick:
> https://picasaweb.google.com/109345699838454178536/InterfacesDeDriveEOutrasEncomendas#5847209418103678802 
>
>
>     - ColorJoy adapter (permits to use Atari joysticks on the CoCo):
> https://picasaweb.google.com/109345699838454178536/ColorJoy#
>
>     - FD-502 interface (arriving soon!)
>
>
> Daniel