Accession No

4638

Brief Description

assorted circuit boards, by Maplin (4638.8), RIM (4638.1-7), and RS Components Ltd. (4638.9, c.1970s

Origin

Maker

Maplin RIM RS Components Ltd.

Class

electronics; electrical

Earliest Date

1970

Latest Date

1979

Inscription Date

Material

plastic (perspex, synthetic rubber and six other types); silicon; metal (gold, three white metals)

Dimensions

4638.1 length 114mm; breadth 102mm; thickness 1mm 4638.2 length 114mm; breadth 102mm; thickness 1mm 4638.3 length 114mm; breadth 102mm; thickness 1mm 4638.4 length 91mm; breadth 88mm; thickness 2mm 4638.5 length 93mm; breadth 89; thickness 30mm 4638.6 length 89mm; breadth 81mm; thickness 1mm 4638.7 length 101mm; breadth 64mm; thickness (both plates together) 5mm 4638.8 length 115mm; breadth 96mm; thickness 26mm 4638.9 length 97mm; breadth 66mm; thickness 2mm

Special Collection

Provenance

Donated on 25/07/1997.

Inscription

Description Notes

Nine circuit boards with gold printed circuits (two with silver-coloured metal printing) on translucent plastic.
4638.1 labelled ‘Multiplexed Displays’; main holes already cut.
4638.2 labelled ‘Multiplexed Displays’; main holes already cut.
4638.3 labelled ‘Multiplexed Displays’; holes not cut but necessary diameters of holes marked in pencil.
4638.4 labelled ‘UART Module’; diameters for holes marked in ink on reverse; main holes cut.
4638.5 labelled ‘UART Module’; 3 IC chips mounted on board; also 4 resistors; one connector with computer port; 8 plug-type connectors. Perspex top and four synthetic rubber feet.
4638.6 labelled ‘16 kHz TIMER’ with main holes cut and some of the small ones; all cut holes marked with diameters in ink.
4638.7 labelled ‘Z80 Target I/O’ with main coles hut and diameters marked in felt-tip on back. Also matching perspex plate for top.
4638.8 labelled ‘4 CH. SERVO CONTROLLER GB83E MAPLIN’; 13 IC chips mounted on board; also 11 resistors; and various other components including a switch and one capacitor and one variable capacitor.
4638.9 in sealed polythene bag with label ‘Printed circuit board for 78/79 series regulators’.

Condition good; complete

References

Events