Gemini Two Tube Clock
5
Update #1 (21
st
May 2019)
www.nixology.uk
TOOLS AND EQUIPMENT REQUIRED
Tools required to assemble the PCB.
The following tools will be required to assemble the PCB:
Soldering iron with a small tip (1-2 mm).
Wire cutters to trim the excess component leads after soldering
Wire strippers
Multimeter for voltage tests and for identifying the resistors.
Laptop or mobile device with WiFi for initial setup.
Materials you will need.
Solder
–
lead / tin solder is highly recommended.
USE LEAD/ TIN SOLDER!
Lead free solder, as now required to be used in commercial products in Europe,
has a much higher melting point and can be very hard to work with. Desoldering
wick (braid)
or a ‘solder sucker’
can be useful if you accidentally create solder
bridges between adjacent solder joints.
Other items you will need.
The clock kit does not include a power adapter. The clock is designed to be built
in to your own housing design and as such you will need to make your own
power supply arrangements. You will need to provide a 12V DC regulated supply
capable of supplying a minimum of 500mA. Take care to connect the power the
right way around.
This clock is supplied as a kit of parts, please pay careful attention to the order
with which components are added and voltage measurements are taken.
DO NOT
–
solder the Buck converter to the clock PCB without having first
soldered R1
–
R4 and the 8 pin DIL socket on the top side.
DO NOT
insert the WeMos, HV Power supply or other IC’s before you have
successfully measured 5V from the 5V test point.
