A new clock design by innovator Changliang Li merges vintage aesthetics with modern technology through the use of Soviet-era components. This “Soviet-Era Style Clock” employs cold-cathode tubes alongside glowing Nixie tubes, creating an eye-catching timepiece that captivates enthusiasts and collectors alike.
The clock’s standout feature is its use of MTX-90 cold cathode thyratrons, which function as the logic components. These tubes, reminiscent of traditional neon tubes, provide a nostalgic glow while performing essential timing functions. The design converts a standard 50 Hz mains circuit into readable seconds, minutes, and hours using a loop counter. This technique is based on a circuit previously popularized in electronics literature and credited to PA3FWM.
Innovative Manufacturing Techniques
The Nixie tubes featured in this project are newly manufactured by Sadudu of iNixie Labs, showcasing innovative techniques in tube production. A video demonstrating the manufacturing process reveals that a fiber laser is utilized to cut the glow elements. These elements are then encapsulated using equipment similar to a lathe, ensuring precision and quality in each tube.
The clock’s functionality relies on the cold-cathode tubes being activated by ambient light or background radiation, as the trigger electrode is intentionally left floating. To enhance reliability, Changliang Li incorporates a surplus smoke detector source, which aids in achieving sufficient ionization for the thyratrons to operate effectively. Although there are claims that the MTX-90 tubes were originally seeded with radioisotopes for improved performance, there is currently no substantial evidence to support this assertion.
Aesthetic Appeal and Functionality
The final product is not only functional but also visually striking, with a hypnotic glow that draws attention. Viewers can see the clock in action at approximately 3:37 in the accompanying video. The blend of vintage technology with modern craftsmanship offers a unique perspective on the revival of retro electronics.
For those interested in the utilization of neon lamps and the history behind the Soviet MTX-90, additional resources are available for deeper exploration into this fascinating topic. The project stands as a testament to innovative thinking and the allure of nostalgic design, thanks to Changliang Li for sharing this illuminating creation. As always, if anyone has a unique project that has undergone a transformation, sharing through community channels is encouraged.
