Altair 8800 Help (Another Follow-Up)

[Chuck Guzis]

On 26 Oct 2007 at 10:33, Rick Bensene wrote:

> An update on the Altair...

Congratulations on getting the thing running!  I'm surprised that the 
old capacitors in the power supply haven't dried out yet--but I 
suspect that you have a heavier-duty PSU in your box--the original 
didn't have much spare capacity.

Yup, the 4K DRAM boards were miserable--they had an annoying tendency 
to change contents when "Reset" was pressed.  Still, if you feel the 
urge to try them, I have some Fujitsu clones of the original 4K TI 
chips that you can have that might hold onto data better.

On the other hand, the boards that used 2102 or even 21L02 SRAMs were 
pretty power hungry. 

I never used MITS-DOS; I became disgusted with the lousy production 
quality of the 8800 and moved to an IMSAI box for a time, then to an 
Integrand "no blinky lights, not even a power indicator" box and ran 
CP/M.

Cheers,
Chuck