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Additional Pictures 

 

The School Edition™ logo.

The external power supply and the
headphone are connected with one module.

The voices of the School Edition are
stored in another module.

The Advanced Discoveries module of
the standard Touch & Discover.

Power supply and headphone are
handwired on the PCB. 

The TSP60C80/CMM80008 Speech-ROM
of the School Edition and a spare place.

The TSP60C21/CMM21004 Speech-ROM
of the standard Touch & Discover module.

The Touch & Discover School Edition makes use of the TSP50C42
standard voice synthesizer chip but lacks an external Speech-ROM.

 

 


If you have additions to the above article please email: joerg@datamath.org.

© Joerg Woerner, June 27, 2005. No reprints without written permission.