In green transportation news we've been tracking everything from wooden bikes to biomethane delivery trucks, to 4, 000 mph vacuum transport tube transit systems.

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The vacuum tube amplifier can also be found in Samsung's home theater systems, beginning with the HT-F6500W, for improved audio clarity and warmth.

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Self-contained vacuum, pump and filter system works without suction lines or other modifications to existing systems.

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As an enthusiastic collector of vacuum-tube and vintage stereo components, Alcocer has also recently begun building custom stereo systems, based around vintage amplifiers.

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It emerged from interviews with media professionals and activists in Thailand that media accountability systems like the Press Council and journalist associations cannot be effective alone in a vacuum in the absence of awareness on the importance of self regulation among journalists and editors.

UNESCO: Communication and Information

The lot also includes some handouts that cover Ferractor-based systems, which Univac used in their logic circuits as a magnetic alternative to the vacuum tubes used in earlier computer designs.

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