1.04 Big Nixie tube display encoder button adjustment Purpose and benefit Enables precise, repeatable per pulse current control for a 1.04 inch Nixie tube display using an encoder and button interface. Helps you calibrate brightness and current delivery with predictable results. Modes and tuning Fine tuning mode: adds or subtracts 1 from the last digit x with a coefficient of 150. Coarse adjustment mode: adds or subtracts 1 from the penultimate digit x with a coefficient in the range 1 to 50. The fine and coarse adjustment coefficients can be configured separately, allowing tailored stepping for different display characteristics. Current range and safety Minimum per pulse current is 0.01 mA. For coarse adjustment mode, the per pulse maximum is 5.00 mA. This setup supports controlled and safe calibration of nixie tube drivers. Compatibility and interface Specifically designed for 1.04 inch Big Nixie tube displays. Uses a straightforward encoder and button interface for quick adjustments without complex setup. Performance features Provides precise control over current per pulse, enabling stable and repeatable display performance. Flexible tuning options support accurate brightness calibration across different nixie configurations. Use scenarios Calibrating brightness for a nixie tube clock or display installation in a gallery or exhibit. Fine tuning current in a nixie driver for a hobby project or prototype to achieve consistent digit illumination. Replacing manual current trimming in a smallscale nixiebased device to improve stability and repeatability.