[COCO] versions. How many?

[Glen VanDenBiggelaar]

I have never seen a 26-3005, and there is the white 26-300b (64K CoCo 1-
although some will argue that this is a CoCo 2), that is also not mentioned.
I have on the site, detailed documentation on the 26-300b which has no
letter silk screened in the board.
The CoCo 2 had again (north American) 10 different model numbers and the
last (26-3127b) has at least 3 known variations.

-----Original Message-----
From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] On
Behalf Of Bruce W. Calkins
Sent: Tuesday, August 09, 2005 7:36 AM
To: CoCoList for Color Computer Enthusiasts; RJRTTY at aol.five.pairlist.net
Subject: Re: [COCO] versions. How many?


"Tandy's Little Wonder,
The Color Computer
1980-1991"
By, F. G. Swygert, Published by FARNA Systems.

Is the closest to your description, no pictures though.

I counted 15 model numbers there.  Although several variations exist
within some of those model numbers.

--------------------------------------------------------------------
 From the book and my own knowledge;
--------------------------------------------------------------------

CoCo 1 revision "A" apparently was the prototype.

There is little indication the "B" revision was released for sale. (I seem
to recall a rumor once of it's existence though)

"C" & "D" boards came in 4K and 16k with or without Extended Color
Basic.  (26-3001, 26-3002)

"E" revision were sold in 16k and 32k with or without Extended Color
Basic.  (26-3001, 26-3002)

The final CoCo 1 revision (Marked NC or not marked beyond the silk
screen number beginning with 285, nicknamed "F" board) came in 16k or
64k with or without Extended Color Basic.  (26-3002A, 26-3003A,
26-3004A, 26-3005)

The first (American) CoCo 2 came in 16k and 64k with or without Extended
Color Basic.  Rumors exist that there were 2 or 3 board variations.
(26-3026, 26-3027)(with A or B suffixes?)

The Korean CoCo 2 came in three board variations.  Again 16k and 64k
with or without Extended Color Basic.  (Some have expressed doubt that
the satellite 64k memory upgrade existed.  I have had two with this 64k
upgrade.)  (26-3134(A,B), 26-3136(A,B))

"Stability" was "achieved" with the CoCo 3.  Only one board version is
known to exist.  128k was standard with Super Extended Color Basic.
Several vendors including Radio Shack had 512k upgrade boards.  Disto
had 512k, 1 and 2 Meg versions as well.  (26-3334)

This list does not address the various 230 Volt and PAL versions.
-----------------------------------------------------------------------

RJRTTY at aol.com wrote:
> Is there a source that lists all versions of the coco and their RS
> numbers and pictures of them too?
>
> Roy
>



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