Nixie Tube Clock Military Metro 2033 ( Voltmeter a scale of 0-30 volts) Estimated shipping times: United States: 25 – 30 daysEurope: 20 – 30 days Will ship within 2-3 business days of receiving cleared payment………………………………………………… Quick replacement of IN-12 tubes without soldering!!!!Original Soviet hard sockets!!! I make these clock in Vintage style. This watch has minor scratches and scuffs on the case. I made the Clock case from the body of a Soviet military dosimeter from Bakelite.The Clock is equipped with original Soviet tubes IN-12 of the 70-80s.On the front of the Clock, I placed: controls and a Voltmeter. On the left part are located: Switch, Button, Handle(cone), Indicator(green) The Switch is used to turn ON and OFF the indication on the tubes. The Button is designed to turn on and off the backlight of the voltmeter. The Handle(cone) is designed to set the clock (hours, minutes, alarm clock) This Handle is an encoder!!! The Handle can be pressed like a button and scrolled in different directions. This way we can manage the settings quickly and conveniently. The Indicator(green) controls the operation of the Handle(cone). From the selected mode, this indicator can:To blink, to glow brightly, to glow faintly, to be turned off.In real-time display mode, the indicator is glow faintly (constant). In the right part are located: Switch, Handle is round(large), The Handle(small) without a cap. The Switch is used to switch the day / night mode, sets the brightness of the tubes. The Handle is round(large) – not used. The Handle without a cap, designed to set the LED backlight. This Handle is an encoder!!! The handle can be pressed like a button and scrolled in different directions.Thus, we can control the LED lighting quickly and conveniently. A voltmeter is located in the central part, it shows what voltage is supplied to the motherboard.It monitors the health of the 12 volt power supply. The Clock can have a voltmeter with a scale: 0-15, 0-20, 0-30 or 0-50 volts. ……………………………………………………