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

Sun Sep 7 22:24:54 EDT 2014

Sounds good.

Kandur

Sunday, September 7, 2014, 6:17:03 PM, you wrote:
> Well lets work on the 40 pin since its what we need. I can make
> modifications for 34 & 50 pin variants so no cutting will be required..if
> the 40 pin version is good starting point.

> -----Original Message-----
> From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of Kandur
> Sent: Sunday, September 07, 2014 7:55 PM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] 8k/16k bankable EPROM cartrdige board

> 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_he
>>> a
>>> 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_he
>>> a
>>> 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&Su
>>>>>> b
>>>>>> 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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