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Old 30th May 2012, 03:05 AM   #1
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Join Date: Mar 2012
Location: Bradford
Default Plastic of the month

The Philips pyramid. Icon of the modern age, fabricated from sections of moulded polystyrene.

A reminder of how much fumbling it took to develop the de facto standard user interface that we came to take for granted. Now, of course, the whole issue of how we select what we listen to is evolving again at great pace.

I guess there was a Marantz equivalent with a different plug. Only three of those connections are used, by the way: 5V supply, gnd, and signal. The circuit happily winks and relays whatever you flash at it, leaving the host machine to recognise and decode its native RC5.

The circuit can be built these days with a cheap Sharp 38kHz receiver chip and a transistor.

What's your favourite bits?

Ian
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