[Coco] 512K factory sealed CoCo3

[rietveld rietveld]

It's a neat looking upgrade but was more expensive than the third party stuff in the RAINBOW magazine

Sent from my BlackBerry 10 smartphone.
  Original Message
From: Mike Delyea
Sent: Tuesday, June 18, 2019 4:41 PM
To: CoCoList for Color Computer Enthusiasts
Reply To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] 512K factory sealed CoCo3


I bought one of the Radio Shack upgrade boards back in the day (minus the
memory chips).  I bought the chips from some other guy and did the upgrade
myself.  I was quite proud of myself.

On Tue, Jun 18, 2019 at 3:16 PM rietveld rietveld <rietveldh at hotmail.com>
wrote:

> Dealer installed. I have one also. The local RS would do the upgrade if u
> paid then put a new 'void if removed' sticker on it.
> The RS mem upgrade is cool. It is the only one that has the chips sitting
> right side down with a big shield
>
> Sent from my BlackBerry 10 smartphone.
>   Original Message
> From: David Gettle
> Sent: Tuesday, June 18, 2019 3:12 PM
> To: CoCoList for Color Computer Enthusiasts
> Reply To: CoCoList for Color Computer Enthusiasts
> Subject: [Coco] 512K factory sealed CoCo3
>
>
> I have in my posession a 512k CoCo3, that is factory sealed with the
> "Breaking this seal will void factory warranty" tape over one screw holding
> the case together. It came to me in a regular white w/blue print CoCo3 box
> labeled as a 128k machine. However the Tandy 512k board is clearly visible
> through the vents in the top of the case. The machine does boot and a
> memory check does reveal that it does have 512K installed. I do not know if
> the unit was upgraded by Radioshack at a service center or if it was done
> before the unit shipped to a store. other than the obviousness of the 512k
> board being in the machine there is no other evidence that the unit was
> ever taken apart.The CPU is not in a chip socket. At this time I am
> planning to keep it as a backup machine in the event that the 2mb CoCo3 I
> am now using should develop problems. I think based on the serial number
> that it is a fairly early CoCo3, I'll post the serial number later.
>
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