[Coco] Multipack info

[Mark Marlette]

Bruce,

Flakey CoCo1&2.

Mark

Quoting "Bruce W. Calkins" <brucecalkins at bellsouth.net>:

>
>
>> This is the first I have heard of this. Must be that someone used the
>> reserved location for something they shouldn't have.......
> Are you referring to the switch or the tales of flakey CoCo 1/2s with the
> upgraded Multi-Pac interface?  Unfortunately with all the computer crashes
> I've recovered from, I still have files in need of recovery and resorting.
> I can't quote a source on the flakey CoCo 1/2 on a upgraded MPI at the
> moment.  It might be just a "understanding"?
>
> I know I did find a description for a switch for this once.  It would seem
> simple, given what little I needed to do to install the upgrade in my
> 26-3124.  Certainly not as hard as the "simple" TTL detector I need to
> design for class Tuesday to flag illegal BCD values.  ;)
>
> Bruce W.
>
>
>> Rule Number 1: Foolow the spec if there is one.....In this case there
>> was......
>>
>> If you find it, I would love to read it.
>>
>> Thanks,
>>
>> Mark
>>
>> Quoting "Bruce W. Calkins" <brucecalkins at bellsouth.net>:
>>
>> > Stock, it works well with the CoCo 1 and 2.
>> > To use it with the CoCo3 it needs a addressing modification.  Not hard,
> just
>> > a 74LS10 IIRCC with some short wires and a trace cut.  Unfortunately
> this
>> > makes it flakey with the CoCo 1 and 2.  Somewhere on-line somebody wrote
> up
>> > a modification that allowed a switch, so you could swap it back and
> forth.
>> >
>> > Bruce W.
>> >
>> >
>> >> I am getting back to using  my coco3. I have a Tandy Multi-Pack  Model
>> >> 26-3124 S/N 2007430.
>> >>
>> >> Will this unit work with the coco2 or coco3 without causing damage?
>> >>
>> >> Thanks
>> >>
>> >> John Chasteen
>
>
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