Product number (P/N): 390,
Keywords/Tags: 390
Date of intro: 1973, Origin: USA (List), Dimensions: 152x80x27mm,
Power: 9V + Adaptor,
Display: Type = Display (LED) (List), Digits = 8+1,
Number of keys: 22, #Key-Black: 2, #Key-Blue: 7, #Key-Red: 1, #Key-White: 12,
Miscellaneous switch: [(Blank)-ON],
Classification: / Pocket,
Featuring: Procent, Memories: 1,
Serie-members: MELCOR: 390 (version-1) (Rectangular keys); MELCOR: 390 (version-2) (Square keys),
Known Serial-numbers: 418265 | 418417 | 418533 (List of all S/Ns from MELCOR)
Collector value: 7.5/10,