[Coco] 68764/68766 EPROMs

[Brian Blake]

Ed,

Count me in for 3.



Brian



On 10/5/2015 10:44 PM, Zippster wrote:
> I’m thinking $10 assembled and with a programmed ROM,
> ready to plug in and go.
>
> - Ed
>
>
>> On Oct 5, 2015, at 8:52 PM, Kandur <k at qdv.pw> wrote:
>>
>> Very professional looking. How much are these?
>>
>> Kandur
>>
>> Monday, October 5, 2015, 5:20:03 PM, you wrote:
>>> Hey guys,
>>
>>
>>> motherboards and F boards, even D boards (barely).
>>> Simple, cheap ECB ROM replacement for these machines.
>>> - Ed
>>> <https://drive.google.com/open?id=0B1sgl615FlGnUDRsa0J2ZVZwYkU
>>> <https://drive.google.com/open?id=0B1sgl615FlGnUDRsa0J2ZVZwYkU>>
>>> <https://drive.google.com/open?id=0B1sgl615FlGnN0p3YTZxd0NtUEk
>>> <https://drive.google.com/open?id=0B1sgl615FlGnN0p3YTZxd0NtUEk>>
>>> <https://drive.google.com/open?id=0B1sgl615FlGnRHVEMEhMcHlqSUE
>>> <https://drive.google.com/open?id=0B1sgl615FlGnRHVEMEhMcHlqSUE>>
>>> <https://drive.google.com/open?id=0B1sgl615FlGneGNOQTNNOTB4RVU
>>> <https://drive.google.com/open?id=0B1sgl615FlGneGNOQTNNOTB4RVU>>
>>
>>>> On Sep 21, 2015, at 7:00 PM, Al Hartman <alhartman6 at optonline.net> wrote:
>>>> Very cool!
>>>> My burners will handle 68766 EPROMS, but being able to use a 2764 will help lots of folks.
>>>> Thanks for doing this!
>>>> -[ Al ]-
>>>> -----Original Message----- From: Zippster
>>>> I just started drawing an adapter up a few minutes ago.
>>>> I have quite a few CoCos that could use an ECB, so it’s something I’ve been
>>>> intending to do anyway.
>>>> I’ll should have files off to OSH Park tonight or tomorrow, there’s not much to an
>>>> adapter like this.
>>>> - Ed
>>
>>
>>>>> On Sep 21, 2015, at 5:53 PM, Al Hartman <alhartman6 at optonline.net> wrote:
>>>>> This is not for a disk controller. Ron needs an Extended BASIC ROM for a Coco he bought. I no longer have any masked ROMs, and offered to burn him one if he could get me the blank EPROMS.
>>>>> But a 2764 with an adapter will cost as much as that 68766 for $18.00, unless Ron can wire one up himself.
>>>>> Clearance isn't a problem for an ECB ROM.
>>>>> -[ Al ]-
>>>>> -----Original Message----- From: Arthur Flexser
>>
>>>>> by having a 28-pin 2764 or 27128 EPROM in a 24-pin disk controller socket
>>>>> with pins hanging off the end and other pins bent outward to not plug in,
>>
>>>>> Art
>>>>> On Mon, Sep 21, 2015 at 6:33 PM, Arthur Flexser <flexser at fiu.edu> wrote:
>>>>>> There have been various such adapters in the CoCo and non-CoCo markets. I
>>>>>> one, though it is somewhat more expensive than those sold by others. There
>>>>>> is not quite enough clearance for most adapters in the Tandy disk
>>>>>> controllers--some have tried cutting a hole in the plastic cover, or just
>>>>>> living with the cover not quite being able to snap shut (the screw will
>>>>>> keep the cover from coming off, and the controller can still be inserted in
>>
>>
>>>>>> greatly magnified if you want to piggyback a SmartWatch real-time clock
>>>>>> method there in my own CoCo system.)
>>>>>> A consideration that also exists is that it may be harder to find an EPROM
>>>>>> programmer capable of programming the 6876x series than for the 27xx EPROMs.
>>>>>> Art
>>
>>>>>> On Mon, Sep 21, 2015 at 6:14 PM, Mark J. Blair <nf6x at nf6x.net> wrote:
>>>>>>> Would it be more practical to make an adapter to plug in more common 27xx
>>>>>>> series EPROMs? I don't recall how much physical clearance is in there.
>>>>>>> --
>>>>>>> Mark J. Blair, NF6X <nf6x at nf6x.net>
>>>>>>> http://www.nf6x.net/
>>
>>>>>>> --
>>>>>>> Coco mailing list
>>>>>>> Coco at maltedmedia.com
>>>>>>> https://pairlist5.pair.net/mailman/listinfo/coco
>>
>>
>>
>>
>>>>> Coco mailing list
>>>>> Coco at maltedmedia.com
>>>>> https://pairlist5.pair.net/mailman/listinfo/coco
>>
>>>>> Coco mailing list
>>>>> Coco at maltedmedia.com
>>>>> https://pairlist5.pair.net/mailman/listinfo/coco
>>
>>
>>>> Coco mailing list
>>>> Coco at maltedmedia.com
>>>> https://pairlist5.pair.net/mailman/listinfo/coco
>>
>>>> Coco mailing list
>>>> Coco at maltedmedia.com
>>>> https://pairlist5.pair.net/mailman/listinfo/coco
>> -- 
>> Coco mailing list
>> Coco at maltedmedia.com
>> https://pairlist5.pair.net/mailman/listinfo/coco
>


-- 
------------------------------------------------------------------------
Tandy Color Computer <http://www.tandycoco.com>
Tandy CoCo Forum <http://www.tandycoco.com/forum>