[Coco] CoCo MECH mechanical keyboard project

[Bruce W. Calkins]

There is a part number on the board (all CoCo boards to the best of my 
knowledge) that ends in the earlier grey CoCo 1s that ends in a "D", "E" 
or "283".  The 283 board is sometimes referred to as the "F" board had 
no provision for 4k chips and used the mylar keyboard like the CoCo 2s. 
64k support was built in.  There may have been a very few "B" boards in 
the wild, given your low serial number and that I have not verified that 
those earliest CoCos had the letter, I really can't be sure without 
seeing that board number.
I do have a 4k CoCo 1 with the "D" board in my collection.  ATM I do not 
know the serial number.  I also have a caseless "D" board from a hacked 
up CoCo.  However, no case = no serial number.
Bruce W.


On 09/14/2018 07:40 PM, rietveld rietveld wrote:
> My 4k coco 1 is serial # 343.   Very very low. But I don't see a revision letter on the board. But it definitely uses the Best pin on female keyboard connection
> 
> Sent from my BlackBerry
>    Original Message
> From: Bruce W. Calkins
> Sent: Friday, September 14, 2018 5:59 PM
> To: rietveld rietveld; CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] CoCo MECH mechanical keyboard project
> 
> 
> 4k CoCo 1 were generally "D" and earlier.  It was only after the "E"
> boards that they shifted to the mylar connector.  There were replacement
> board side connectors, but that was 20 years ago.  So you will need to
> plan on some sort of adapter.
> Bruce W.
> 
> 
> On 09/14/2018 04:07 PM, rietveld rietveld wrote:
>> Hi ed.   I am in need of a keyboard for my original 4k grey case. Will the keyboard connect to that? Or just the newer style mylar??
>>
>> Sent from my BlackBerry
>>     Original Message
>> From: Zippster
>> Sent: Friday, September 14, 2018 4:05 PM
>> To: CoCoList for Color Computer Enthusiasts
>> Reply To: CoCoList for Color Computer Enthusiasts
>> Subject: [Coco] CoCo MECH mechanical keyboard project
>>
>>
>> Hey guys,
>>
>> I designed a mechanical keyboard for the CoCo.  I need to do a little more
>> work on refining it, but I’m really pleased with how the project has gone so far.
>>
>> It works great!  Check it out if you’d like...
>>
>> https://thezippsterzone.com/2018/09/14/coco-mech-mechanical-keyboard/ <https://thezippsterzone.com/2018/09/14/coco-mech-mechanical-keyboard/>
>>
>> - Ed
>>
>>
>> --
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>> Coco at maltedmedia.com
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>>