Product number (P/N): TR1,
Keywords/Tags: TR1
Date of intro: 1973, Origin: Germany (List), Dimensions: 170x58x16mm, Weight: 140g,
Display: Type = Display (LED) (List), Digits = 8+1,
Number of keys: 21,
Classification: / Pocket / Slide Rule,
Featuring: Procent,
Main Components: MOS TECHNOLOGY: MCS2521,
Other components: ITT: 492 {2x},
Collector value: 9/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS), Donation of: PICK Achim,
Info: First combination of calculator and Slide Rule
Internet: Link-1: VINTAGE CALCULATORS WEB MUSEUM