The whole video is on Yiu Tube Here:
In a message dated 12/30/2015 4:39:09 P.M. Eastern Standard Time,
[log in to unmask] writes:
First stab at sharing audio via SoundCloud:
Soundtrack for 1970s PBS documentary about Thomas Edison. Audio found on a
reel to reel tape, 1/4
track mono 3.75IPS. Likely taped out of a TV set earphone jack.
Video, with lower quality sound, here: