Nixie Clock Wemos IN-12, Руководство пользователя

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Tube Healing Mode
After a long period of time, tube filaments which are not often used (e.g. the “9” on the tens of
hours or minutes) can get dim, despite the ACP that is regularly done.
If you make a “long” press of the button (more than 8 seconds), the clock will enter filament
healing mode. All the power will be placed through a single filament of a single digit to clean it.
A short press will change the selected filament.
Another super-long press or cycling through all the filaments will return the clock to normal.
Caution! Don't leave a single filament in this state for an extended period of time. It is a harsh
process, and may damage the tube if you leave it in this mode for too long. Normally a few
seconds minutes will restore the cathode digit.
Normally you will not need to use this mode! It is only there for tubes that are already in
trouble.
Don’t make a habit of using this mode!