DATAMATH CALCULATOR MUSEUM
|This Radio Shack
Spellmaster was manufactured
in August 1988 by
Texas Instruments in the United States (Date code USA 3188 » wk 31 yr 1988.
|The inside view of the
Radio Shack Spellmaster with a well known
printed circuit board (PCB) from its twin Speak & Spell.
electronics of the Radio Shack Spellmaster manufactured in 1988 with the
power supply module (left), transformer for the loud speaker (upper right), jack for ear phones,
jack for external power supply and keyboard connector (between the Integrated Circuits).
|The PCB of the Radio
Shack Spellmaster manufactured in 1988 with the
TMC0271 microcontroller, TMC0281 speech synthesizer and CD2350 Speech-ROM.
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© Joerg Woerner, August 13, 2010. No reprints without written permission.