Nixie Tube Clock ‘Nixie 5750’
Issue 1 (5 July 2020)
www.pvelectronics.co.uk
- 23 -
6
SOLDERING THE NIXIE TUBES
PLEASE READ THIS CAREFULLY:
Solder each tube in turn, and after soldering each tube, test
the tube by assembling the 2 boards and connecting power.
Each tube should cycle 0 through to 9 and repeat. If you do
not get this for a tube, stop and check your work. Do not
proceed to mount the remaining tubes in the hope that the
bad tube will magically fix itself at the end.
If your tubes have the extra outer 2 leads for decimal points, they
must be snipped off, leaving 2 rows of 6 wires. Insert the tube
facing forwards. From the underside, bend the 2 diagonally
opposite wires outwards to hold the tube in place. See the picture
below:
Now solder those 2 pins in place to secure the tube. From above,
check the alighnment and orientation of the tube, and make
adjustments as necessary by re-wetting the pads until the tube is
perfectly front facing and vertical. Then you can solder the
remaining 9 pins. Note that one pin is not soldered.
