Time to finish off the break-out boards by soldering in the IN-14 Nixie Tubes. I started off by threading all the connection leads through the break-out boards for all the Nixies before turning on the soldering iron. This was fidgety work, and if I had previously known that cutting each adjacent leg (in [say] the clockwise direction) a millimeter shorter than the one before it, the whole task would have been a lot easier.

Thankfully, my head was a little better screwed on when it came to ensuring the Nixies were soldered in properly and level. I started off by soldering just one leg, then checking there was no gap between tube and PCB at the solder point. If there was a gap, I'd re-melt the solder whilst pushing the tube down on the PCB.

I repeated the process for a leg on the opposite side of the tube, then proceeded to solder the rest of the legs. Wash, rinse & repeat another five times and presto! Finished Nixies & PCB mounts.