Additional Pictures 


This Sinclair Scientific was manufactured in March 1975 by Sinclair in the United Kingdom.

The double-sided printed circuit board (PCB) of the Sinclair Scientific
is centered around a TMC0805 single-chip calculator circuit.

The Sinclair Scientific next to the TI-1500 introduced in the same time frame.

horizontal rule

If you have additions to the above article please email:

Joerg Woerner, December 19, 2021. No reprints without written permission.