DATAMATH PICTURES

The sales box of the MBO Expert sold around 1976 in Germany.

This MBO Expert (7C-903) with Serial Number 524-85 was manufactured in October 1975.

The MBO Expert is powered by a disposable 9 Volts battery.

The printed circuit board (PCB) of the MBO Expert is centered around a TMS0833
single-chip calculator circuit and supported by a Bowmar BD 5026 display driver.

Close-up view of the TMS0833 single-chip calculator circuit.

Close-up view of the BD5026 Digit Driver.

Close-up view of the unknown Display Module of a MBO Expert manufactured in October 1975.

Close-up view of one Digit of the unknown 7-Segment LED Module.