Temp’n’Glow IN‐16 Nixie Thermometer Documentation
9
9 Soldering
Attention:
If
you
have
purchased
the
acrylic
case
for
documentati
the
thermometer,
please
read
that
on
first!
First solder all the flat components such as resistors and diodes.
Resistor
R42
: This is only used if no glow lamp (GL1), but the left decimal point of the left tube is used as
a negative indicator.
If
you
use
the
GL1
glow
lamp,
R42
is
not
mounted.
Then solder the ICs. IC3 is socketed, so solder the socket here first. When soldering the ICs please watch
ut for the marking that you find on the IC and on the pcb. Then L1, the capacitors, the resonator CR1 and
he coil are soldered in. The resonator has no polarity.
o
t
Figure 1 resistor and diodes mounted
Figure 2 jumper pins, capacitors mounted
Now solder the transistors T1, T2, T3 and IC5. T3 and IC5 have a heat sink. The components are installed
horizontally and are secured with M3 x 6 screws and M3 nuts onto the board. This is to cool the
components. Then the connections for the temperature sensors, the push buttons and the power supply
connector are soldered. When you solder the power supply connector make sure that it is flush to the back
of the pcb. This is important, if you consider to use our acrylic housing.
