Re: [midatlanticretro] Altair 680 Project Update
- billdeg@... wrote:
> Unfortunately no, it has to be the 74L123.Bill,
According to a book I have - "Basic Electronics Theory" by Delton Horn -
the 74L uses a tenth of the power a standard TTL uses but gates at tenth
the speed while a 74LS uses a little more power then a low power TTL but
gates at the same speed as a standard TTL.
Wouldn't you be able to use something that switches faster then the part
you are replacing?
>> billdeg wrote:
>>> I am learning a lot about the Altair 680. It appears that the memory
>>> is OK, but as you can see from the latest pictures...
>>> ...I am missing a chip, a 74L123. Might anyone here have a spare lying
>> Would a 74LS123 be a suitable replacement?
>> http://www.unicornelectronics.com/IC/74LS.html has them for 27 cents.