The Burroughs B-5092 is a medium-sized Nixie tube that shares pin compatibility with other common top-view types such as the ZM1020, Z560M, and GN-4. Unlike these, however, it features a taller, more slender glass envelope. Its most distinctive element is the unusual anode cage, which leaves the cathode stack clearly visible from the side.

Another detail that can be seen from the side is the so-called “giver pill,” a tiny glass bead that originally held mercury vapor. After the tube was sealed, the pill was heated by running current through the wire it is wrapped in, causing the bead to rupture and release the mercury inside. The presence of mercury helps suppress sputtering, significantly extending the tube’s service life. This long-life characteristic made the B-5092 especially popular for Nixie clocks, though today the tube has become quite rare.

The B-5441A is a medium-sized Nixie tube manufactured by Burroughs. What sets this tube apart is the fact that it was evacuated from the bottom, a feature usually only found in larger side-viewing Nixie tubes. This design results in a perfectly dome-shaped top. In addition to displaying digits zero through nine, the B-5441A also includes both left and right decimal points. These distinctive features make it highly sought after by collectors, particularly fans of the popular anime Steins;Gate, who consider its shape ideal for recreating the “Divergence Meter” device featured in the series.

The B-7971 is a very large neon-filled alphanumeric display tube manufactured by Burroughs. Unlike ordinary Nixie tubes, which contain cathodes in the shape of symbols arranged on a stack, the B-7971 features 14 individual wire segments that can be combined to display every letter of the English alphabet in addition to digits 0 through 9. An additional segment in the bottom can be used to display an underscore. As opposed to the typical 16 segments found in most alphanumeric displays, the B-7971 only has a single segment in the top and bottom of the display area.

The B6037 is an unusual Nixie tube manufactured by Burroughs, making it an “official” Nixie tube as indicated by the labeling on its glass envelope. Unlike most Nixie tubes, which display only the digits 0–9, the B6037 includes an extra cathode shaped as a “1” placed next to the standard stack of digits. This allows the tube to display numbers from 0 to 19.

Its glass envelope is relatively large to accommodate the two digit stacks, though it still uses the same 15.5 mm characters found in many smaller Nixie tubes. The envelope is also covered with black shrink wrap. Interestingly, the anode grid was apparently not designed specifically for this model. In most tubes, the anode is supported by the same posts that hold the digits, but in this case it has been shifted to the right and is instead held in a somewhat awkward position at the upper right of the tube.

The HB-105 is a so-called Pixie tube manufactured by Burroughs. Unlike a Nixie tube, which forms numerals from a stack of digit-shaped cathodes, the Pixie tube uses a single anode plate perforated with digit-shaped holes, through which a neon discharge can be seen. The tube’s datasheet lists its various supposed advantages over Nixie tubes which included the ability to display multiple digits simultaneously and its low operating current. Additionally, it was significantly cheaper than conventional Nixie tubes at the time.