Single digit Chestnut wood boxed Nixie clock:
On the top of the box a
large New Old Stock socketed Nixie tube (IN-18 Russian tube) display
hours and minutes one after one.
Each number is
displayed for about ½ a second with a slight pause between each
digit to improve visibility.
non-conventional way of reading hour will captive the attention of
every body and provide a nonstop digit moving in the tube.
There is no external
switch for setting the clock; magnetic contacts (Reeds) are used in
place. Setting the clock is done with a small magnet (strong earth
It allows easy setting
while avoid people to change the setting when looking and touching the
Placing the magnet at
the front top left angle of the box will set hours, top middle front
angle for 10's minutes and top front right angle for minutes. Also, a
rear switch allow the tube to be white/blue lighted by the bottom, when
the light switch is turned off and the magnet is correctly placed for
setting, the bottom of the tube is high light to indicate the correct
The box is
professionally made of high quality French Chestnut wood, thickness is
about 10mm!. The hand finish is 3 layers special blue varnish + beeswax
The clock plug directly
in 200-240VAC, no external wall adapter is needed (unless you need to
operate it from 110 VAC)
The clock accuracy is
base on a high quality KDS crystal and then, the main frequency is not
used (it works at 50Hz as well as 60hz) When unplug from main, the
clock continue running, the display is blanked but the clock will
continue to work for a very long time. No battery backup is needed, an
internal high capacity condenser (1 Farad) keep the system working.
Tube is driven at
about 2/3 of its capability to ensure very long life.
Logic tube driver is
powered from regulated 5 volt.
Clock circuitry driven
from separated power to ensure 1 Farad capacitor up to maintain only
needed parts to keep clock running when unplug from main.
Clock is about 9.8 cm
side, height is about 7 cm (1 Inch = 2.54 cm) Cord is 2 meters long.
On sale at Ebay