Early Electronic Calculator Pocket Calculator Photo Gallery

Commodore C110 1972 Logic Technology: LSI Display: LED OEM is Bowmar.

Royal Digital V 1972 Logic Technology: LSI Display: VFM

Digimatic P8 (Model No. 41031) 1973 Logic Technology: LSI Display: LED OEM is Bowmar. Made for Sears.

Sanyo ICC-83 (SACOM MINI) 1973 Logic Technology: LSI Display: GDM

XONEX ELSI III / DATAEXAC 1973 Logic Technology: LSI Display: VFI

Digimatic D8 (Model No. 41024) 1974 Logic Technology: LSI Display: LED OEM is Bowmar. Made for Sears.

Keystone 395 / exponent 1 1974 Logic Technology: LSI Display: PPX2 The Keystone calculators are quite rare in their use of gas-discharge displays in a pocket calculator.

Keystone 2050 1974 Logic Technology: LSI Display: PPX2 A rather rare early scientific pocket calculator. Unfortunately, this unit is non-functional, seems to be a non-repairable fault with the calculator chip.

Texas Instruments SR-11 1974 Logic Technology: LSI Display: LED (individual)

AGS 14 1975 Logic Technology: LSI Display: VFM

Novus 6010 "International Computer" 1975 Logic Technology: LSI Display: LED Canada made the transition from Imperial measures to Metric in the 1970's. All sorts of conversion aids were produced: tables, 'slide rules', and a few specialised electronic calculators such as this model. The Novus (made by Philips) brand calculators suffer from poor quality displays which tend to lose segments, as can be seen in several digits of this unit.

Rockwell 8R 1975 Logic Technology: LSI Display: LED