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Dero Research and Development "Sage 1" Desktop Calculator


Little is known about Dero Research & Development (Huntington, New York), the company that developed the Sage 1 electronic calculator. It is known that Dero did design and manufacture military electronics systems, including radios and control systems. The company branched into consumer electronics with the Sage 1 electronic calculator, which appears to have been introduced in October of 1965. This machine appears to be the one and only calculator produced by Dero Research and Development.

The calculator had a 10-digit seven-segment display, with 20-digit double-precision capacity. The was no provision for calculations involving fractional numbers (there is no decimal point on the keyboard). There is little known about the electronics of this machine, other than it apparently utilized early Signetics DTL bipolar integrated circuits (Signetics was the first IC manufacturer to market a series of DTL devices). This would make the Sage 1 the first bipolar IC-based electronic calculator in the marketplace.

The museum is looking not just for an example of this calculator (working or not), but is also interested in any information relating to the company and its history. At one time, Gerald S. Loecher was the President and Chairman of the Board of this company. Also, Robert Paul Freedman was at one time Director of Research and Development for the company. If anyone out there has any information about Mr. Loecher or Mr. Freedman, or Dero Research & Development, please contact the museum by clicking HERE.
Dero Sage 1 Specifications

Manufacturer: Dero Research and Development Corp., Huntington, New York
Model Number: Sage 1
Manufactured In: Huntington, New York, USA
Date of Introduction: October, 1965
Price: $995 (at introduction)
Display Technology: 7-Segment, 7/8th-inch tall by 5/8th-inch wide digits w/lead zero suppression
Logic Technology: Signetics Small-Scale Integrated Circuits
Digits of Capacity: 10, with 20 digit double-precision operation
Decimal Modes: Not supported
Math Functions: Four Function with product accumulation key
Memories: One store/recall memory register
Constant: One constant register
Performance: Addition/Subtraction: 8ms; Multiplication/Division: 25ms (Manufacturer Claimed)
Size: 12 1/4" wide, 12 13/16" deep, 6 3/8" high
Weight: 12 pounds