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

Kandur k at qdv.pw
Sun Sep 7 20:55:18 EDT 2014 

Sure, make a 40 and 50 pin wide quick design, to see the price.

Kandur

Sunday, September 7, 2014, 5:47:14 PM, you wrote:
> How about I do a quick design and see what the price will be...

> -----Original Message-----
> From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of Kandur
> Sent: Sunday, September 07, 2014 7:38 PM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] 8k/16k bankable EPROM cartrdige board

> These have pins, fitting into proto boards.
> I need what is on the bottom part of the ribbon cable.
> http://tinyurl.com/l3by7bk 

> Kandur

> Sunday, September 7, 2014, 2:49:55 PM, you wrote:
>> Haha.  I saw a part number in his parts manifest that should be 
>> exactly what your looking for... The card edge to insert in the end if
> your cable..

>> He uses this for the cable ...
>> http://www.digikey.com/product-search/en?KeyWords=c4pxg-4006m&WT.z_hea
>> der=se
>> arch_go

>> And this for the slots each pack go into ...

>> http://www.digikey.com/product-search/en?KeyWords=c4pxg-4006m&WT.z_hea
>> der=se
>> arch_go

>> The other double-edged blade connector should be the final piece, or I 
>> could make one the same way I do the other boards..it would be very 
>> small and cheap to duplicate.



>> -----Original Message-----
>> From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of Kandur
>> Sent: Sunday, September 07, 2014 4:38 PM
>> To: CoCoList for Color Computer Enthusiasts
>> Subject: Re: [Coco] 8k/16k bankable EPROM cartrdige board

>> I saw this Cadillac before, all I need is a VW. :)

>> Kandur

>> Sunday, September 7, 2014, 2:37:38 PM, you wrote:
>>> 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-i
>>> n
>>> terfac
>>> 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&Sub
>>>>> m
>>>>> i
>>>>> 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-
>>>>>>>>> P
>>>>>>>>> ak
>>>>>>>>> -Cartridge
>>>>>>>>> -/321514156488?



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