Early
Electronic
Calculator		 Lloyd's Accumatic 55 Calculator

Manufacturer: Lloyd's
Model: Accumatic 55
Year: 1974
Form: Pocket
Functions: Basic four, percent, recip, square, root, memory
Number of Digits: 8
Display Type: VFM
Display:Futaba 9-CT-04
Logic Technology: LSI
Diodes: 9
Transistors: 2
IC Complement:Rockwell A1241PA
Batteries: 4 AA
Power Connector:6 VDC, + tip, mini audio, non-isolating
Tech. Data Level: 2
Tech. Data Source: RE
Tech. Data Pages: 1
Tech. Data:Schematic (pdf)

 

- Unit Log -

Serial Number: 8-19895
Year of Manufacture: 1974 (IC stamped with 7448.)
Accessories: With power adapter (Lloyds Model YA7247, Series 202A), case & manual.
Date of Receipt: 2008 Mar 16
Source: BM from SPARC
State upon Receipt: Good physical condition except neg. battery connector corroded. Some corrosion on power jack from battery potential. Functional.
Current State: Functional (2020 Feb, 2008 Mar 17).

Date: 2008 Mar 17
Procedure: Cleaned. Corroded battery connector removed. Battery connections not reconnected.

Date: 2020 Feb
Procedure: Battery wires connected, with battery disconnect on AC operation. Original design appears not to have disconnected the battery when the AC supply is plugged in. RE'd.


  Lloyd's Accumatic 55
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