Bob Mackin - Continuing developments of the "Molephone"
Bob Mackin was the developer of the Molephone, a magnetic induction-based underground communications device which proved be vital for cave rescue, and also for radio location of underground points which proved to be to useful in exploration, allowing surveys to be checked and digging sites to be identified. In this recording, Bob tells how the "Molephone" was refined and how Dick Glover realised its value as a surveying tool. This is one of a series of recordings made in 1983 by Geoff Yeadon and Lindsay Dodd who were researching a book about Gaping Gill, which was to be a follow-up to the link up with Ingleborough Cave. The book was never written, but these valuable records remain.
Interviewee: Bob Mackin
Interviewer: Geoff Yeadon
Title: Part 2 - Continuing developments of the "Molephone"
Date of recording: 1983 (published 22 Feb 2009)
Sound recordist: Lindsay Dodd
Copyright details: Geoff Yeadon & Lindsay Dodd
Duration of recording: 10 minutes 22 seconds
Recording details: Sampling frequency: 44,100 Hz; Channel mode: joint stereo
MP3 file details: File size: 9,739 kB; Bit rate: 128 kbit/s constant; Compression: 91%
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