[Coco] coco xt-rtc adapter by Burke and Burke (From Tandy CoCoForums)

[Bill Pierce]

Is that all you have of the interface? There is supposed to be a 2nd board that plugs into that one. That's just the coco adapter to plug in the XT interface which is much larger. He was using "off the shelf" IBM compatable XT boards which he could buy cheap as they were being phased out. He had to devise a way to connect it to the Coco and that piece is the adapter.
Most of his models supported dual drives so they had 2 headers on them for data lines and 2 for controller lines. All in all you had 4 ribbon cables (2 for single drives) coming off the big board going to the drives.
The Burke and Burke controllers never had a "real" case. They had 2 flat pieces of metal (bronze color, one on each side) in which there were spacers between the plates to hold them the proper width apart and also to mount the boards. The edges were left open. Most times, they didn't fit "just right" into the multipak slot. Easy to knock em out of alignment.
The "plates" were usually shaped like this "

|-------------------------------|
|                                     |
|                                     |
|                                     |
|                                     |
|                                     |
|___                               |
       |                              |
       |_______________|

They usually had the silk screen logo of


Burke and Burke XT
Hard Drive Interface

or

Burke and Burke XT-RTC
  Hard Drive Interface

stamped on the plate


Bill Pierce
My Music from the Tandy/Radio Shack Color Computer 2 & 3
https://sites.google.com/site/dabarnstudio/
Co-Webmaster of The TRS-80 Color Computer Archive
http://www.colorcomputerarchive.com/
Co-Contributor, Co-Editor for CocoPedia
http://www.cocopedia.com/wiki/index.php/Main_Page
E-Mail: ooogalapasooo at aol.com




-----Original Message-----
From: Bob Devries <devries.bob at gmail.com>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Sent: Mon, Apr 8, 2013 12:43 am
Subject: Re: [Coco] coco xt-rtc adapter by Burke and Burke (From Tandy CoCoForums)


It looks to me like those pigtails are just the ends of the crystal leads, 
and should in fact have been trimmed.

Regards, Bob Devries
Dalby, QLD, Australia

----- Original Message ----- 
From: "Stephen H. Fischer" <SFischer1 at Mindspring.com>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Monday, April 08, 2013 2:02 PM
Subject: [Coco] coco xt-rtc adapter by Burke and Burke (From Tandy 
CoCoForums)


>
> http://tandycoco.com/forum/viewtopic.php?p=865#p865
>
> Coco xt-rtc problems
>
> I have a coco xt-rtc adapter by Burke and Burke. This one is supposedly a 
> pre-production model. Comes without a case. Bought it from a local 
> recycler, who obtained it from a collector who claimed everything worked 
> last time used.. Anyway, I can't get it to work, and from basic 
> inspection, I can see what might be a loose jumper. I'm going to post a 
> link to a my Flickr account, a close up of the board, maybe somebody can 
> tell me if this needs to be soldered to one of the near by points.
>
>
> http://www.flickr.com/photos/94829497@N08/8628815773/
>
> I am not sure if it was like this when I got it, or I damaged it on the 
> way home.. Thanks!
>
> -Shane
>
> --------------------------------
> Re: Coco xt-rtc problems
>
> http://www.flickr.com/photos/94829497@N08/8628815983/in/photostream/
>
> Does this help? The top right ic, top 2 pins on the left side..
>
> ------------------------------
>
> Hi,
>
> I do not have this device and cannot tell where this jumper should go from 
> the pictures.
>
> Can anyone else help?
>
> SHF
>
> --
> Coco mailing list
> Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco 


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