6 assorted printed circuit boards that accompanied ABDNP201341a, illustrating technology used in 1987. Includes 1 power board with 12 power transistors, relay and piggy-back board, 4 boards approx 230 mm by 290 mm, one including mixed…
Engraving, caricature portrait of King's College Staff in various guises (minister, death, pope, highlander, and 4 in academic robes) standing on tiled floor with the steeples of King's College and St Machar's behind (at the time of a proposed union…
Black and white lithograph of Marischal College, the quadrangle viewed through the archway on Broad Street, before the addition of the Mitchell Tower. Two female figures with parasols on left, capped and gowned figures in groups, walking, talking.…