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spell master Model: Spell master Radio shack 
Battery: 4 x 1,5 V type C
                       
AC adapter:
Year: 1988
                                 
Chip:

Info: The Radio Shack Spellmaster) was manufactured in 1988 and represents the last design iteration of the Speak & Spell family. The printed circuit board (PCB) itself is much smaller than the original Speak & Spell design.