docuenglishv106.pdf

Building Instruction Nixie clock kit V1.06

26.03.2006

Software Version 6.0

This documentation is copyright protected.

You are not allowed to use this document commercially in any way!

Please follow the building steps with very much care.

Please operate only in closed housings. Use a 9-12V AC wall wart power supply.

I point out hereby that the kit is to be built only by experienced electronics engineers. Further I

take no responsibility from possible damage.

The clock works with a 9-12 Volt AC input 12W 1A max. peak current. In normal operation that

means 3.6 W with 300mA.

DANGER: This circuit has an internal voltage switchmode converter that will convert

9V to 12V AC into 180 V DC. This could be dangerous if used by inexperienced personal.

The clock must only be operated in closed housings. VDE regulations are to be considered!

Commercial use of the circuits or software and/or parts of it requires express written

permission.

Note: This information is provided 'as is'.

Readers should only attempt to build this design if they are competent at electronics assembly

and understand the dangers of mains voltages.

No responsibility is accepted for any damage, injury (however serious) or death.

Tools

Soldering iron

Tin-solder

Wire cutter

Multimeter

Required:

Nixie tubes

Wall wart power supply , 9-12V AC or DC, 500mA minimum.

If you want to derive the clock timing from the 50Hz/60Hz mains frequency, you must

use a 9-12V AC wall wart.

Nixie tube solder pins (qty 72)

Part List for clock V1.06

Part

Part Number

Capacitor 470uF/25V

C3, C11

Capacitor 1 uF – 4,7 uF /450V

Capacitor 10-100uF/25-63V

C10

Capacitor 2,2 nF (222)

C14

Capacitor 47 pF

C13

Capacitor 22 nF (223)

C5, C7, C8, C9, C12

Resistor 100 KΩ

R1, R3, R5

Resistor 470 Ω

R23

Resistor 1 KΩ

R19, R27

Resistor 470 KΩ

R2, R4, R6

Resistor 220 KΩ

Resistor 4,7 KΩ - anode resiostors

R8, R9, R10, R11, R12, R13

Resistor 10 KΩ

R26

Resistor 33 KΩ

R14, R16, R17, R18, R20, R21, R22, R25

Trimmer 1 KΩ

R24

16 pin socket for 74141 driver

Socket for IC3 and IC4

28 pin socket for PIC

Socket for IC1

Diode 1N 4001

D1, D2, D3, D4

Diode BYV 95C / FR205DC

Diode Zener ZF 5,6

Transistor MPSA 92

Q1, Q2, Q3

Transistor MPSA 42

Q4, Q5, Q6, Q8

Transistor FET IRF 730

Voltage regulator µA 7805

IC2

PIC processor 16F876

IC1

Driver IC 74141

IC3, IC4

Timing circuit NE 555 DIP

IC5

Resonator or Xtal 4 MHZ

Coil 100µH

Switch to set the clock

S1, S2

HEBW 21

Power Supply socket

PCB version 106

Circuit board for Z566M and ZM1040

The PCB

Figure 1: Component Side of the PCB

Figure 2: Solder Side

1. Mounting the Mouser Pins

Figure 3: Mouser Pins unsoldered

Figure 4: Pins soldered into PCB

Please place the pins from the solder side, turn the PCB without dropping the pins and solder

the pins on the component side. All other parts are soldered from the solder side!

Watch out for good connection of pin and PCB. The component side with white text is actually

the bottom side, when mounted in a clock case. The solder side is the top side where the nixie

tubes are mounted. Note: the sockets for the nixie tubes are also mounted from this side. One

Pin can be left free. It is not connected in the tube so it might spare a lot of expensive pins. (It

is the pin the white triangle on the PCB points at)

2. Solder the diodes

Now solder the diodes D1, D2, D3, D4, D5 and D9.

Watch out for the position of the ring.

Figure 5: Diodes soldered into PCB

3. Mounting the resistors

To make later soldering easier please solder in the resistors lying (R 8-R 13, R14, R18)

Figure 6: mounted resistors

4. Soldering the sockets for ICs

Watch out for the marking of the socket.

It has to be soldered according to the marking on the PCB.

Figure 7: the sockets for the integrated circuits

Figure 8: Sockets mounted on the PCB Figure 9: See the 4 outer pins soldered first.

First solder the 4 outer pins of the socket. Be sure that the socket is firm on the PCB.

Then solder the rest.

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