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

Kandur k at qdv.pw
Sun Sep 7 17:05:03 EDT 2014


It looks great. One pin is shorter then the others,
could that cause problems when used with a Y-cable?

Kandur

Sunday, September 7, 2014, 1:23:12 PM, you wrote:
> Kandur, Is this what you need??
>  
> http://www.mediafire.com/watch/tjwkwtiifl2a8wd/3D_Render_(Experimental_Y-Car
> d_Edge).mp4

> (Note the 40 pin connector marks, 1 to 1 arrangement) Not all of the 40 pins
> were used by the EPROM, but all 40 are tied together with each card edge.

> It will just be a couple of bucks more per board to do this that's all.

> -----Original Message-----
> From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of Chad H
> Sent: Sunday, September 07, 2014 12:50 PM
> To: 'CoCoList for Color Computer Enthusiasts'
> Subject: Re: [Coco] 8k/16k bankable EPROM cartrdige board

> 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&Submit
>> =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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