1974

• Production : 1974
• Display : LED 8
• Power : 3 x AA
• Made : Germany


• The first calculator manufactured
  in Germany


• Additional information
• Advertising (ger)
• Catalog extract (ger)

1975

• Production : 1975
• Display : VFD 8
• Power : 2 x NiCd
• Made : Germany


• Additonal information
• Brochure extract (ger)

1978

• Production : 1978
• Display : VFD 8
• Power : 2 x NiCd
• Made : Germany


• Additional information
• Brochure extract (ger)

1979

• Production : 1979
• Display : VFD 8
• Power : 3 x AA
• Made : Germany


• Scientific model


• Additional information
• Brochure extract (ger)

1978

• Production : 1978
• Display : y-LCD 8+2
• Power : 3 x 3v
• Made : Japan


• Scientific model


• Additional information
• Advertising (ger)