Re: No Slot Clock

["Bill Heckel" <wheckelny1@verizon.net>]

I tried cobbing the job several years ago, I just dug my //e out of storage 
and  remembered the no slot clock after reading and old issue of Nibble ad 
for a TimeMaster HO..



"Michael J. Mahon" <mjmahon@aol.com> wrote in message 
naWdnXkZaLpPYHbZnZ2dnUVZ_r-dnZ2d@comcast.com">news:naWdnXkZaLpPYHbZnZ2dnUVZ_r-dnZ2d@comcast.com...
> William Heckel wrote:
>>
>> "Michael J. Mahon" <mjmahon@aol.com> wrote in message 
>> qYOdndb5g7MMMXfZnZ2dnUVZ_q2dnZ2d@comcast.com">news:qYOdndb5g7MMMXfZnZ2dnUVZ_q2dnZ2d@comcast.com...
>>
>>>William Heckel wrote:
>>>
>>>>I am looking for a No Slot Clock  for my //e.  I had one in it back from 
>>>>the late 80's but the NSC no longer works, I even tried replacing the 
>>>>battery. Any ideas where there might be some of the No Slot Clock chip 
>>>>available. I don't remember who made them originally.
>>>
>>>They were just repackaged Dallas Semiconductor "phantom" clock chips.
>>>They are still made by Dallas/Maxim.
>>>
>>>BTW, how did you try to replace the batteries (there are two)--they
>>>are pretty well potted.
> >
>> I thought I did it very very carefully, but I may have nuked the chip in 
>> the process.
>
> How did you gain access to the batteries?
>
> The only process I have seen for splicing in a new cell (the two on the
> original chip are actually ORed together with diodes) involved access
> through the slot in the socket and cutting a trace on the tiny PC board
> and soldering a couple of wires to vias on the board.
>
> The two lithium cells are under the pc board, and potted in place, so
> it would seem hard to get to them directly.
>
> -michael
>
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>
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