lab recording, 24/8/1986, 24°C, position-detection lamp and other lamp (Racal with B&K 1/4" or 1/2", tape no. R86-7)

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