LED Packaging
Early CD versions came with a blinking red LED on the side of the case. This was designed by EMI contractor Jon Kempner, who was awarded the platinum disc, using the now discontinued LM3909 LED flasher IC. The circuit was powered by a single AA cell; the battery life was stated to be over 6 months. Some versions were also made with 2 AA batteries and later editions of the CD set did not feature the blinking LED.
'Essentially, it's a device which we thought was entertaining. It's an idea of Storm Thorgerson's which related to Dark Side and the pulse, and it's a live album so the box is "alive". After that, in terms of seriously deep meanings, one might be struggling a bit.' — Nick Mason,The debut of the album was highlighted by a light show from the top of the Empire State Building in New York City with music simulcasted on a New York City radio station.
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The outer packaging for Pulse with the light compartment and holder removed and on top.
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The blinking light compartment (2 AA version) from an original Pulse release with batteries removed.
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The battery warning sticker that was on the inside of the packaging. Light still works as of 2011.
Read more about this topic: Pulse (Pink Floyd album)
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