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VFD Clock III vacuum fluorescent display

1:59 pm July 8, 2019 By Julian Horsey

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VFD Clock III vacuum fluorescent display

Electronics enthusiasts Howard Constantine has returned to Kickstarter for the 21st time to launch his latest campaign the VFD Clock III, specifically designed for VFD type Y-1938 / 1939 Digivac DT-1704. Watch the video below to learn more about the vacuum fluorescent display which is available via Kickstarter from $45 for the PC board and microcontroller.

Full clock kits are available from $125 or roughly £99 and worldwide shipping is expected to commence sometime around September 2019.

“This VFD clock III is made exclusively to drive the GE Y-1938 / 1939 vfd tubes, and similar types that don’t have a separate digit driver, like the Tung-Sol Digivac DT1704 types. These GE VFD tubes are somewhat rare and sometimes include a blue filter coating. They have a more blue tint than any other VFD tube I’ve seen. They are unique in that they don’t have a separate digit driver, just the segments and the filaments. Thus, it is impossible to multiplex them, so I took a different approach to drive them using the HV5812 chips. The Tung-Sol Digivac types DT1704 & similar also work well in the design, and can be left clear or the blue filter coating can easily be added.”

For a complete list of all available pledge options, full specifications and details on each component jump over to the official project page on Kickstarter.

Source: Kickstarter

Filed Under: DIY Projects, Hardware, Top News

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