Peter G. asked Levi about this device, at the time. Levi indicated that it was the radiation (positron) detector, IIRC.
-----Original Message----- From: Horace Heffner Leitz references the video: http://www.youtube.com/watch?v=t9I_CJti-RU&feature=player_embedded which is in regards to 14 Jan 2011. Note oscilloscope at time 00:32! Measuring frequency generator output? Best regards, Horace Heffner http://www.mtaonline.net/~hheffner/
