Wall of RAM

logjam · 2006-01-02T00:25:50+00:00

A while back on ebay I was just looking around and came upon 50,000LEDs.Ebay is a dangerous place, I can understand how women go to the storeand spend $800 window shoping.$300 later and I have 50,000 LEDs in the mailAnyway, I gave away around 1,500 to friends. I still have MANY of themleft.I thought a "fun" project would be to create a "Wall of RAM". Now itwould be fairly easy to emulate the ram and display the results on thewall using a CPLD, but what about actually making real ram?Does anyone think its possible to use capacitors and high currentdrivers to use the LED+capacitor combination as ram?The goal of the project would be a wall of cards, say 4k of ram max.This wall of ram would interface to either the Altair that I bought ORthe Apple 1 kit that I bought on ebay.What do you guys think? It seems that with some RAS/CAS decoding logicthat it shouldn't be too hard. The cons of this project are the costof 4,096 capacitors and PCBs. The pros of the project are, well, itwould look really neat. :)Tell me what you think.Grant

Jan 02, 2006 40 Replies

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Tim Williams 20 years ago

Even better then, pattern welded knife blade! 8-)

Dunno what the tin and lead would do though... might be better to like...melt...then electrorefine...then forge...which is rather pointless except to be able to say "the iron atoms in this thing used to be LED legs"...

Tim

-- Deep Fryer: a very philosophical monk. Website:

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