View Full Version : Altair 8800b 110/220V

October 26th, 2015, 09:33 AM
On original advertsing about Altair 8800b model, MITS stated the new 8800b model was able to accomodate 110v as well as 220v. But there two different models or just one model accepting any of 110/220 inputs?. I have been unable to find any reference to this issue on the 8800b manual.

October 26th, 2015, 05:05 PM
Hi Inakito,

You may want to refer to this website:

In the list of documents is the 8800 schematic. If I read the schematic correctly, I believe it shows 6 possible input voltage configurations including 110 and 220.
Hope this helps,