Educational

• speak and spell line

Model:  Speak & Spell  1v 1981
Battery: 4 x 1,5 C 
AC adapter: AC9199
Year: 1981
Chip:  TMC0271, TMC0281, TMC0351 and TMC0352
Info: 1 series blue logo on the right

• speak and spell line

Model:  Speak & Spell  2v      
Battery: 4 x 1,5 C
AC adapter:
Year: 1986
Chip:
Info: 2 series red logo on the right

• speak and spell line

Model: Buddy Speak and Spell German
Battery: 4 x 1,5 C
AC adapter:
Year: 1981
Chip:
Info:It is the German version of the well known Speak & Spell (Type 2).Extremely rare Speak & Spell in German version, called Buddy.Dismantling the Buddy manufactured in December 1981 by Texas Instruments in their Rieti, Italy facility reveals a small surprise: The green fluorescent display of the Buddy uses only 8 alphanumeric characters compared to the 9 characters of the 2nd generation Speak & Spell manufactured in the same timeframe in the United States. 

• speak and spell line

Model: Speak and Spell
Battery: 4 x 1,5 C
AC adapter:
Year: 1991
Chip:
Info: Chines series

• speak and spell line

Model: Speak and Spell clone China
Battery: 3 x 1,5 C
AC adapter:ear: 2019
Chip:
Info: Here is a clone of the famous "Speak & Spell" produced in China in 2019, it uses an LCD display with a green backlight, has the polarizer in reverse, so as to have the green writing on a black background.