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

[Kandur]

Good point. I made a Y-cable back in the day, (in the 80s).
It worked perfectly for me with a FD, a HD controller and
a RS-232 cartridge connected to it. What I really need is a 
very small board 1"x2" appx. with edge connectors on both ends, 
all 40 tied together with each card edge, then I don't have to worry
about the EPROM's conflict. It would be less expensive too.

Kandur

Sunday, September 7, 2014, 2:23:13 PM, you wrote:
> 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&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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