Uranium glass seals in a vacuum tube under UV light.

This classic DEC PDP-8 was recently donated to the Rhode Island Computer Museum by Boston Financial and Equity Corporation and came from Sonny Monosson's American Used Computer. It was powered on Saturday for the first time in probably 50 years.

I have been working on a Wavetek 1080 Sweep Generator from the early 1990s. Traced a -18VDC power supply fault to a shorted capacitor. Not the one in the middle that burned, the one on the left that is shorted. Wavetek put both of these polarized Tantalum capacitors in backwards.

I have been working on the DEC PDP-9 at the Rhode Island Computer Museum for several months fixing numerous hardware faults. We finally found the last failed component and were able to boot ADSS from DECtape, making it the only running PDP-9 on the planet.