lab recording, 15/9/1984, 24°C, position-detection lamp (Racal with B&K 1/2" or B&K 1/4", tape no. R84-7)

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith