A Tour of Company Sites

Calculators Sold by Sumlock And Made By Other Companies
Sumlock Compucorp 324G

Sumlock-Compucorp  324G

Sumlock-Compucorp 324G Scientist

The display is 12 digits, amber Panaplex gas discharge.

The calculator is powered by 4x D size rechargeable cells.

This model has advanced scientific functions, and is programmable, with two 80-step memories.

140 mm x 230 mm x 70 mm (5.5" x 9" x 3"), 1100 g (2.5 lbs.) without batteries.

The electronics in this example are date coded to mid-1973.

Made in the U.S.A. by Compucorp, and sold in Britain under the Sumlock name, and in the U.S. and elsewhere under the Monroe name or just Compucorp.

Inside Sumlock-Compucorp  324G

Here the keyboard and assembly of circuit boards has been removed from the casing.

Components of Sumlock-Compucorp  324G

The circuit boards have been unplugged from the socket assembly.

Label of Sumlock-Compucorp  324G
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Calculators Sold by Sumlock And Made By Other Companies

Comptograph 101
Plusograph
Wanderer Conti
Logatronic Visible Computer
Nixdorf Visible Computer
RUF Accounting Machines
Compucorp 320G
Compucorp 324G

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Text & photographs copyright © 2002 - 2009 Nigel Tout, except where noted otherwise.