Vintage Electronic Calculators:

Overview of Brands


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AKA: RICOMAC 1221 PD, AKA (Label): 7521-35A or 7521-00, Product number (P/N): 752135A (7521-35A),
Keywords/Tags: 752135A (7521-35A) | 752100 (7521-00) | 1221PD (1221 PD)
Date of intro: ~1974, Origin: Japan (List), Dimensions: 305x229x102mm,
Power: AC,
Display: Type = Display (VFD tube) (List), Digits = 12+1,
Number of keys: 30, #Key-Grey: 17, #Key-Red: 1, #Key-White: 12,
Decimal switch: [F-(Plus)-0-1-2-3-4-6], Round switch: [(ArrowDown)-5/4-(ArrowUp)], Miscellaneous switch: [PRINT_ON-OFF ON-OFF], Indicators: MEMORY POWER,
Classification: / Desktop with Display+Printer,
Featuring: Procent, Logic-technology: LSI (Large Scale Integration), calculator-chipset, Memories: 2,
Related with: RICOH_docu: (Ad.) *: We're out to make... (1216,1217,1221P,1221PD); RICOH_docu: (Ad.) 1221PD: Mit RICOH kommen Rechner auf die Rechnung!,
Main Components: HITACHI: HD3584; HITACHI: HD3585; HITACHI: HD32610P,
Serie-members: RICOH: 1221P (Without display); RICOH: 1221PD (With display),
Known Serial-numbers: 68995 | 76213 (List of all S/Ns from RICOH)
Collector value: 7,5/10,
Courtesy of: BOGDANOV Dmitriy,


(Courtesy of: BOGDANOV Dmitriy)

Label, name plate
S/N: 76213
(Courtesy of: BOGDANOV Dmitriy)

Created: 05-jul-2009, Manual-update: 14-oct-2020, Batch-update: 09-may-2023             

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3 Pic(s),


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