DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments Speak & Spell (English Voice Type 1)
| Date of introduction: | July, 1978 | Display technology: | Fluorescent |
| New price: | $50 | Display size: | 8 alphanumeric |
| Size: | 10.0" x 7.0" x 1.3" 254 x 177 x 34 mm3 |
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| Weight: | 16.7 ounces, 474 grams | Serial No: | |
| Batteries: | 4*C cells | Date of manufacture: | wk 38 year 1980 |
| AC-Adapter: | AC9199 | Origin of manufacture: | Italy |
| Precision: | Integrated circuits: | TMC0271, TMC0281, TMC0350 (CD2303), TMC0350 (CD2304) | |
| Memories: | |||
| Program steps: | Courtesy of: | Joerg Woerner |
There
are a lot of differences between American
English and British English, therefore Texas Instruments had to change the
Speech-ROM's of the original Speak & Spell
to sell it on the United Kingdom market.
The
pictured Speak & Spell (English voices) was manufactured late in 1980 and
sports already the two additional jacks to connect an external power supply and
a headphone. The printed circuit board (PCB) itself is identical with the
original Speak & Spell but sports different Speech-ROM's. The CD2303 resp.
CD2304 designation indicates the Custom Data stored inside.
An inside view of some other dismantled Speak
& Spell products could be found here.
The pictured Speak & Spell sports the button keys with the huge TI logo, we know three different designs:
| Version | Manufactured | Keyboard | TI logo |
| Type 1 | 1978-1980 | Button | big |
| Type 2 | 1980-1985 | Membrane | big |
| Type 3 | 1986-1990 | Membrane | small |
Even the Speak & Spells with the United Kingdom Speech-ROM's reveived all three designs, don't miss the early UK Type 2 and the later UK Type 3. Don't miss the rare Japanese edition of the Speak & Spell.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, July 14, 2005. No reprints without written permission.