AKA (Label): MODEL 500, Product number (P/N): 500,
Keywords/Tags: 500
Date of intro: ~1974, Origin: USA (List), Dimensions: 152x76mm,
Power: 9V + Adaptor,
Display: Type = Display (LED) (List), Brand = BOWMAR: Optostic, Digits = 8+1,
Number of keys: 23,
Classification: / Pocket,
Featuring: Procent, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip, Memories: 1,
Main Components: MOS TECHNOLOGY: MCS2521,
Other components: ITT: 492; MOTOROLA: MC75492P,
Resemblance with: COMPU-TECH: VIII,
Serie-members: MELCOR: 500 (version-1) (Blue); MELCOR: 500 (version-2) (Brown),
Known Serial-numbers: 5000075 (50 00075) (List of all S/Ns from MELCOR)
Collector value: 8/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),