AKA (Label): Mod. ETR4, Product number (P/N): ETR4,
Keywords/Tags: ETR4 | 4
Date of intro: ~1972, Origin: Germany (List),
Display: Type = Display (Nixie) (List), Digits = 8,
Number of keys: 21, #Key-Green: 9, #Key-Red: 12,
Classification: / Desktop with Display,
Featuring: Logic-technology: LSI (Large Scale Integration), calculator-chipset,
Resemblance with: WALTHER: ETR4 (version-1),
Serie-members: WALTHER: ETR4 (version-1) (White); WALTHER: ETR4 (version-2) (Green),
Known Serial-numbers: 22508452930008 (2250845 2930008) (List of all S/Ns from WALTHER)
Collector value: 8.5/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Info: Psychedelic 1972'er
Internet: Link-1: RECHENKASTEN