Cerberus GA12 (ETL GR10J)

The GA12 is a large Nixie tube distributed by Swiss manufacturer Cerberus, though it was not originally produced by them. Instead, it is a rebranded version of the GR10J tube manufactured by ETL in Great Britain as part of their DIGITRON line of display tubes. This tube stands out for several reasons. Firstly, it features a copper-colored anode, an unusual characteristic shared by only a handful…