DATAMATH CALCULATOR MUSEUM |
Additional Pictures
The printed circuit board
(PCB) of the German LETTERlogic makes use of the TMC0273 single-chip microcomputer and an external TMC0355 (CD2604) 128kBit "Speech-ROM". |
The PCB of this United
Kingdom LETTERlogic is almost identical but makes use of a TMC0355 (CD2601) 128kBit "Speech-ROM". |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, February 13, 2005. No reprints without written permission.