The research behind our upcoming chipspeech product led us to develop a great interest on the different versions of the CPU and Speech ROMS (VSMs) that were shipped in the various revisions of the US speak and Spell. Earlier versions had bugs and a different word list than the final ones.
We (me and a few other researchers) so far have collected three different word list/roms for the main US Speak and Spell, but we feel there might be more than that out there.
We are looking specifically for the earliest "Buttons" versions that have date codes in 1978 and early 1979.
If you have one with a membrane keyboard, do not bother.
Whether or not it is circuit bent or broken makes little difference to us.
This is for research that will be published, not for inclusion in the software.
Last edited by plgDavid (July 28, 2014 5:19 pm)