Nixie Glass Tube Clock 3 Manual de usuario

Glass Nixie Tube Clock #3

User's manual

User manual – Glass Clock Design #3 rev 1.2

Page 1 of 2

User manual – Glass Clock Design #3 rev 1.2

Table of Contents

1 Glass Clock Design #3...........................................................................................................................4

2 Introduction to Nixie Tubes...................................................................................................................5

3 Clock Features........................................................................................................................................

4 Unpacking and setting up the Clock......................................................................................................8

5 Setting the Clock....................................................................................................................................9

5.1 Clock diagram................................................................................................................................9

5.2 Setting the time and date..............................................................................................................10

5.3 Set time mode...............................................................................................................................10

5.3.1 Setting the time - hours.........................................................................................................10

5.3.2 Setting the time – minutes....................................................................................................11

5.4 Set date mode...............................................................................................................................11

5.4.1 Setting the date – month.......................................................................................................12

5.4.2 Setting the date – day............................................................................................................12

5.4.3 Setting the date - year...........................................................................................................12

5.5 Setting the Alarm Time.................................................................................................................13

5.5.1 Enabling the Alarm...............................................................................................................13

5.5.2 Set Alarm time mode............................................................................................................13

5.5.3 Setting the time - hours.........................................................................................................14

5.5.4 Setting the time – minutes....................................................................................................14

5.6 Changing clock options................................................................................................................15

5.6.1 Option 1 – 12/24 hour mode.................................................................................................15

5.6.2 Option 2 – Date format display option.................................................................................16

5.6.3 Option 3 – Display option, time/date/temperature, crossfade..............................................1

5.6.4 Option 4 – Temperature units, F or C...................................................................................18

5.6.5 Option 5 – Brightness level..................................................................................................19

5.6.6 Option 6 – Anti-cathode poisoning function........................................................................20

5. Setting the display ON/OFF times...............................................................................................21

5. .1 Entering the OFF/ON set time enable..................................................................................21

5. .2 Setting the OFF time.............................................................................................................22

5. .3 Setting the ON time..............................................................................................................23

5. .4 Disabling OFF/ON time.......................................................................................................24

6 Maintenance and Care..........................................................................................................................25

6.1 Cleaning........................................................................................................................................25

6.2 Use................................................................................................................................................25

Warranty...............................................................................................................................................26

8 Specifications.......................................................................................................................................2

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User manual – Glass Clock Design #3 rev 1.2

1 Glass Clock Design #3

Congratulations on your purchase of this unique timepiece! This clock uses Cold

War era Nixie display tubes. The old is mixed with the new, using a RISC

processor based single chip computer – which has more processing power than the

old computers that originally used these Nixie tubes.

The case is all optically clear Simax glass and clear acrylic support pieces to

complement the glass vacuum tube construction of the Nixies.

“Стекло часы Дизайн номер 3”, or “Glass Clock Design #3” is the third design

for my Nixie tube based clock. It uses a microprocessor that multiplexes 3 tubes

by 2 (meaning 2 tubes are on at a time, with 3 sets of 2). SMD (surface mount)

construction is used throughout. A high efficiency high voltage power supply is

used to generate the 180v required for the Soviet Nixie tubes.

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User manual – Glass Clock Design #3 rev 1.2

2 Introduction to Nixie Tubes

Nixie tubes (gas indicator tubes) were invented during the Cold War in the early

50's by a small vacuum tube manufacturer called Haydu Brothers Laboratories.

These tubes were sold by the Burroughs Corporation, who came up with the trade

name “Nixie”. This name refers to "NIX I", an abbreviation that stood for,

"Numeric Indicator eXperimental No. 1”, which was a label for one of the

drawings for the tube. This was shortened to “NIXIE” and the name stuck.

Early computers and test instruments didn't have any means to display digits

easily until the Nixie tube appeared. Nixies found their way into numerical

computer displays, volt/ohm meters, frequency counters, radiation counters and

even calculators. By the mid 19 0's, they were obsolete (replaced by LED's and

LCD displays) and were discontinued.

A Nixie tube display, which should really be called a gas indicator tube, works

like a neon bulb. A neon bulb works by a high voltage ionizing neon gas, causing

the gas to glow with an orange color. The Nixie tube takes this a step further, by

shaping the cathodes like a numeral (0 – 9). When the cathode is energized, the

numeral glows orange. There are individual cathodes for each digit, 0 – 9. Some

tubes have decimal points, and others may contain special characters, such as “F”

or “Hz”.

Nixie tubes require high voltage with special drivers for each digit, provided by a

special high voltage converter on the circuit board. There are many failure modes

for Nixie tubes. Breakage of the glass tube, loss of seal between the metal pins

and the glass, and cathode poisoning. Cathode poisoning is when unused or

seldom used digits acquire a coating of material “sputtered” off of the active

digits. This coating insulates the metal, making it difficult for the digit to glow.

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Illustration 1: Explo e view of a

Nixie tube

User manual – Glass Clock Design #3 rev 1.2

The tubes used in this clock are Russian (Soviet) military tubes. The Soviets,

seeing the Western Nixie, came up with their own versions with similar sizes and

shapes. Unlike the U.S. Tubes they were manufactured well into the 1980's. Since

the collapse of the Soviet Union, these tubes became available on the surplus

market, possibly from old warehouses of obsolete electronic equipment. This

clock contains the IN-14 series of tubes. One interesting feature is the '5' digit. It

is actually the '2' digit upside down and reversed, making for a very unique

looking '5'.

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User manual – Glass Clock Design #3 rev 1.2

3 Clock Features

The glass clock has many features. They are listed below:

Unique look of individually formed digits.

Optically pure Simax brand glass tubes for the case.

Laser cut clear acrylic used for the case’s internal support pieces.

Time can be displayed in either 12 or 24-hour format.

Date can optionally be displayed in either “mm dd yy” or “dd mm yy”

format.

Temperature can optionally be displayed in either Degrees F, or Degrees C.

Power loss time backup, will not lose the time if power fails, and no battery

to replace.

Nixie tube anti-cathode protection software, helps prevent tube failure.

Programmable display Off period – blanks display, while still keeping time.

Temperature compensated Quartz Crystal controlled timebase for accuracy.

Automatic Leap Year correction.

Auto display brightness settings.

Option for cross fading digits.

Page 6 of 2

User manual – Glass Clock Design #3 rev 1.2

4 Un acking and setting u the Clock

Carefully unpack the clock from the box. The box should contain a wall plug-in

power supply, two clear acrylic end plates and the clock itself.

The power supply plugs into the wall outlet. The other end plugs into the clocks

power input jack.

When powered up for the first time, the clock will go through the self test

checkout. This checkout will set all the digits to '9', and each digit (starting with

the leftmost digit) will count down from '9' to '0'. When this is complete the

display will read “00 00 00”. Then each digit will go blank one at a time starting

with the leftmost digit. This completes the self test.

The clock has to buttons. On the left is a black function button, and on the right is

a red mode button.

At this point, the clock should show “0 00 00” with the leftmost digits (hours)

blinking. It is now in the time/date set mode. There is no need to press the right

mode button to enter the time set mode. Go to the next section, “Setting the

clock”. Note: Due to the time save function of the clock, if it was disconnected

from power less than an hour ago, it will not enter the time set mode – it will

show the current time.

Page of 2

Illustration 3: Si e View, Right

Illustration 2: Si e View, Left

User manual – Glass Clock Design #3 rev 1.2

5 Setting the Clock

This section describes how to set the clock. This includes setting the time and

date, plus all the display options. Setting the Nixie clock features is accomplished

by using the red mode button and the black function button.

5.1 Clock diagram

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Illustration 4: Si e view

User manual – Glass Clock Design #3 rev 1.2

5.2 Setting the time and date

When setting the time/date, the time is entered first followed by the date.

Set the time by pressing the red mode button on the right side momentarily

(Note: when powered up the clock will already be in set time mode, no need

to push the mode button). When pressed, the hours digits will flash on and

off once a second.

5.3 Set time mode

When the clock is in the set time mode, the current time will be

displayed with the hours (2 leftmost digits) blinking. The colons will

both be on steady (no blinking) and the seconds will be off.

If the colons are blinking, the clock is still in the normal display

mode, and the red mode button on the right side should be

momentarily pressed to enter the set time mode.

Note: If the clock loses time (first setup, or without power for an

extended period of time) the time displayed will be all zeroes: 0:00.

To cancel setting the time value at any point, press and hold the red

mode button until the display goes blank. This will cancel setting the

time/date. When the mode button is released, the clock will go back

to the normal display. The old time value will be used.

5.3.1 Setting the time - hours

When the hours (leftmost) digits are blinking, the hour value can be

changed.

The black function button on the left side will change the hour value

when pressed. Holding the function button on will quickly cycle

through the hours (0-23). Note: When setting the hours, 24 hour

mode is used, regardless of the hour format setting (12/24 hour

display mode). This means '00' is 12 AM (midnight), and '13' is 1 PM

(afternoon).

Once the hours are set to the proper value, press the red mode button

(right side) momentarily. The clock will then go to the minutes set

mode.

Page 9 of 2

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