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Loving the glow of vacuum pubes in old radios and TV's I wanted to find a way to achieve this without wiring and power supplies (and wasted electricity) I found that my Sandisk Cruzer pen drives had a lovely glow and also pulsed continuously and flickered when being accessed. The pulse won me over. Cracked open and hot glued to the bottom of Vacuum tubes, the pen drives provided the look and mood I desired. Finding the parts and putting it all together took considerable time but the resulting contraption is exactly what I wanted. 4 pen drives (2 easily removable) and room for a 1T hard drive. EL wire in an old hollowed out light bulb completed the look.
There is also a small diorama observable from the end. Creepy "Prisoner of Technology".
I'll make another!