speakers

Techmoan's 45-minute retrospective on Sony's MiniDisc, covering the first and last machines, ATRAC, MD-LP, Net-MD and HiMD. It argues the format deserves more credit than its US failure narrative suggests.

A tour of the historic WLW transmitter facility in Mason, Ohio, recorded at Hamvention 2013. It shows the surviving equipment from the 500,000 watt AM era, when WLW was the only US station at that power, and explains the history.

Technology Connections gives a deeply researched history of RCA's CED video disc system, a capacitance-based format that took over a decade to reach market. Part one covers its development and strange technology.