Velleman K8099 Illustrated Assembly Manual
Total solder points: 230 + 74
Difficulty level: beginner 1 2 3 4 5 advanced
NIXIE CLOCK
K8099
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ILLUSTRATED ASSEMBLY MANUAL H8099IP-1
* optional enclosure TKO K19 (black) - TKOK17 (white) ** optional plexiglass enlcosure B8099
Features & Specifications
Grab your chance NOW , build your own nixie clock. Limited edition!
What are ‘nixie’-tubes ?
Nixie tubes are the ‘LED indicators’ of the past. In the 50’s, 60’s and early 70’s there were no LED’s or LCD’s. Neon gas
filled tubes were used to display numerical data. They were part of scientifi c equipment, counters, voltmeters, control panels
etc... Nixies feature a characteristic warm orange glow. They are no longer in production, which explains their price.
Features
High Quality nixie tubes
Microprocessor controlled
Neon HH:MM separator
Accurate timekeeping
Economy “tube blank” option
Specifications
Display tubes: NOS Siemens ZM1336K
Anode HT: +180VDC
12h/24h displaying (selectable)
50/60Hz AC power sync (auto-detect)
Power supply: 9-12VAC / 300mA (option) (e.g. PS1205AC)
Dimensions (lxwxh): 110x55x60mm
Optional enclosure (undrilled):
Black: TKOK19
White: TKOK17
Optional enclosure (pre-drilled):
B8099
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Assembly hints
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1. Assembly (Skipping this can lead to troubles ! )
Ok, so we have your attention. These hints will help you to make this project successful. Read them carefully.
1.1 Make sure you have the right tools:
• A good quality soldering iron (25-40W) with a small tip.
• Wipe it often on a wet sponge or cloth, to keep it clean; then apply solder to the tip, to give it a wet look. This is called ‘thinning’ and will
protect the tip, and enables you to make good connections. When solder rolls off the tip, it needs cleaning.
• Thin raisin-core solder. Do not use any flux or grease.
• A diagonal cutter to trim excess wires. To avoid injury when cutting excess leads, hold the lead so they
cannot fly towards the eyes.
• Needle nose pliers, for bending leads, or to hold components in place.
• Small blade and Phillips screwdrivers. A basic range is fine.
For some projects, a basic multi-meter is required, or might be handy
1.2 Assembly Hints :
⇒ Make sure the skill level matches your experience, to avoid disappointments.
⇒ Follow the instructions carefully. Read and understand the entire step before you perform each operation.
⇒ Perform the assembly in the correct order as stated in this manual
⇒ Position all parts on the PCB (Printed Circuit Board) as shown on the drawings.
⇒ Values on the circuit diagram are subject to changes.
⇒ Values in this assembly guide are correct*
⇒ Use the check-boxes to mark your progress.
⇒ Please read the included information on safety and customer service
* Typographical inaccuracies excluded. Always look for possible last minute manual updates, indicated as ‘NOTE’ on a separate leaflet.
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Assembly hints
1.3 Soldering Hints :
1- Mount the component against the PCB surface and carefully solder the leads
2- Make sure the solder joints are cone-shaped and shiny
3- Trim excess leads as close as possible to the solder joint
REMOVE THEM FROM THE TAPE ONE AT A TIME !
AXIAL COMPONENTS ARE TAPED IN THE
CORRECT MOUNTING SEQUENCE !
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Construction
IMPORTANT!
This kit generates high voltages. Always use a suitable enclosure for this kit!
The Kit consists of 2 boards. One for the electronics and one for the Nixie, display tubes
Unpack, inspect and handle the tubes with care!
All components are mounted on a “double side” PC-board.
Components on double sided boards are hard to remove, therefore, DOUBLE check each component before soldering!!!
HINT : The display PCB for the tubes features a tube centre hole, this hole can be used as template to drill the tube holes in
the enclosure
MAIN BOARD
1. Diodes. Watch the polarity!
CATHODE
D1 : 1N4007
D2 : 1N4007
D3 : 1N4007
D4 : 1N4007
D5 : 1N4148!!!
D...
2. Horizontal resistors
R...
R1 : 10K (1 - 0 - 3 - B)
R2 : 10K (1 - 0 - 3 - B)
R3 : 10K (1 - 0 - 3 - B)
R4 : 10K (1 - 0 - 3 - B)
R5 : 10K (1 - 0 - 3 - B)
R6 : 100K (1 - 0 - 4 - B)
R7 : 390K (3 - 9 - 4 - B)
R8 : 1K (1 - 0 - 2 - B)
R9 : 1K (1 - 0 - 2 - B)
R10 : 1K (1 - 0 - 2 - B)
R11 : 330K (3 - 3 - 4 - B)
R12 : 10 (1 - 0 - 0 - B)
R13 : 3K (3 - 0 - 0 - 1 - 1)
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