Melcor SC-535

Serial number 28093, made in USA
Accessories None
Condition Excellent. Two rubber feet are missing and there is a back label with the note "o.k. 26.9.77"
Repairs, Comments 31.3.2003 Opened the unit and removed the two big accu packs that already showed some leakage. The power supply connector has a bit of a contact problem.
Acquired 17.3.2003
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Type, Precision, Input mode Scientific, 10 BCD digits, exponent ±99, Algebraic
Programmable No
Memory 1 storage register, not permanent.
Note: A value is stored when pressing "M" after "=", otherwise the value is recalled.
Display 11 digit 7 segment red LED, one digit used for sign, plus 3 digit smaller LED display for exponent and sign
Hardware
 CPU MCS 2525, MCS 2526 (MOS)
Special features Instructions on the back of the calculator
Original Pricing, Production Made by Melcor Electronics Corp, Farmingdale, NY 11735, USA, 1974, $89.95
Batteries Built-in accu pack or external DC 7.5V power supply, plus on center.
Each pack consists of 3x 1.5V cells and apparently the packs are connected in series.
Dimensions Length 15.7cm, Width 8.7cm, Height 3.7cm
Links
Comment A unit that was apparently designed to rival Hewlett Packard's Classic series calculators, ie. the HP-35.
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