[Coco] 8k/16k bankable EPROM cartrdige board

[Chad H]

In lieu of obtaining a actual MPI, building one of these would be best I
think, IMO..
https://sites.google.com/site/tgmaxx/tandy-color-computer/expansion-interfac
e


-----Original Message-----
From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of Chad H
Sent: Sunday, September 07, 2014 4:23 PM
To: 'CoCoList for Color Computer Enthusiasts'
Subject: Re: [Coco] 8k/16k bankable EPROM cartrdige board

I think that is just for visual keying.  I could always move it flush so
it's the same as the others on the edge.  Bill raises a good point though.
I don't have any Y-Cables to test the thing.  I've heard others have made
Y-Cables before with mixed results.  Not sure if something specific has to
be done with the board or not.

-----Original Message-----
From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of Kandur
Sent: Sunday, September 07, 2014 4:02 PM
To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] 8k/16k bankable EPROM cartrdige board

Being such a short board,  it could be used without a cartridge.
To show how serious I am about this mod, opened my beloved Coco-3 and
snapped a few photos, with Kip's EPROM board in the expansion slot.
to check how would it fit.
http://qdv.pw/coco/?p=299 

Kandur

Sunday, September 7, 2014, 10:50:20 AM, you wrote:
> So far, I've been ordering them in sets of 3 from OSHPark.  That's the 
> minimum order.  I am charged per square inch.  If the PCB doesn't need 
> to
be
> lengthened, the price won't change.  I could theoretically delete the 
> open notch at the top of the PCB and replace with the card connector.  
> This should work well if the PCB won't be in a cartridge housing.  Not 
> sure how it would effect things if it's mounted in a cartridge.

> I usually order another set once my last one has been sold.  Turn 
> around time is 2-3 weeks.  I can design and order a sample set and see 
> how it
turns
> out.

> -----Original Message-----
> From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of Kandur
> Sent: Sunday, September 07, 2014 12:29 PM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] 8k/16k bankable EPROM cartrdige board

> Sounds perfect. 
> How would that effect the price and
> when will you order the next run?

> Kandur

> Sunday, September 7, 2014, 6:45:28 AM, you wrote:
>> Or I could do a special version of the EPROM board with the 
>> straight-thru male header.  Its really very simple change in the 
>> board
> layout editor then the PCB house does it.

>> Sent from my ASUS Infinity

>> On Sep 6, 2014 10:28 PM, Kandur <k at qdv.pw> wrote:
>> Something like this for $6.95 + shipping 
>> http://www.electronicplus.com/prodSearch.asp?prod_search=PC-501&Submi
>> t
>> =Search
>> 5 pins have to be cut off from this.
>> http://www.electronicplus.com/images/products/PC-501.jpg

>> Kandur

>> Saturday, September 6, 2014, 8:00:56 PM, you wrote:
>>> Your Y cable to card edge instead of 40 pin socket header

>>> On Sep 6, 2014 9:17 PM, Kandur <k at qdv.pw> wrote:
>>> This one seem to be simpler,
>>> all connections straight thorough on both side of the board.
>>> http://qdv.pw//eng/_photos/Computers/adapter.jpg

>>> Kandur

>>> Saturday, September 6, 2014, 6:24:40 PM, you wrote:
>>>> I'm sure I could...just would have to make sure of the pinouts 
>>>> first

>>>> On Sep 6, 2014 7:38 PM, Kandur <k at qdv.pw> wrote:
>>>> After 3 tries and url edits, success. Very nice board.
>>>> If you had a 40 pin male IDC header on this board for an easy 
>>>> Y-cable connection, I would order one for sure.
>>>> Could you make an adapter board with one end having a Coco 
>>>> cartridge slot edge connector, the other end having a 40 pin male 
>>>> IDC header for a Y-cable?

>>>> Kandur

>>>> Saturday, September 6, 2014, 4:57:33 PM, you wrote:
>>>>> Make sure you copy the whole link with numbers.  Emails to this 
>>>>> forum often chop the links for some reason

>>>>> On Sep 6, 2014 6:30 PM, Kandur <k at qdv.pw> wrote:
>>>>> "This listing
>>>>> (Tandy-TRS-80-CoCo-Color-Computer-EPROM-Pak-Cartridge) has been
> removed, or this item is not available.

>>>>> Please check that you've entered the correct item number Listings 
>>>>> that have ended 90 or more days ago will not be available for viewing.
> "

>>>>> Kandur

>>>>> Saturday, September 6, 2014, 2:09:37 PM, you wrote:
>>>>>> I have another batch of these in if anyone is interested.



>>>>>> http://www.ebay.com/itm/Tandy-TRS-80-CoCo-Color-Computer-EPROM-Pak
>>>>>> -Cartridge
>>>>>> -/321514156488?



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