Spectrox was a standard printed fanzine, edited by Simon Black, which launched at WhoCon 21 in October 1984. Two and a half years later, in June 1987, it notched up its fifth issue, which was one that made an interesting sidestep into the world of audiozines. Issue 5 of Spectrox was a printed fanzine as per normal, but it had a tapezine containing exclusive content to accompany it. Purchase of this audio cassette was optional.

The billing in the Celestial Toyroom advertisement for Spectrox 5 claimed that this experiment was the "first and probably only time" that such a dual-format approach would be employed on the fanzine. With the benefit of hindsight, this appears to have been somewhat prophetic, as Spectrox ceased in its original form with this issue.

Audio content for this ninety-minute bonus included an interview with actor Richard Franklin (Captain Yates in the Pertwee era), and a memorial tribute to the second Doctor Who, Patrick Troughton, who had recently passed away. Also vying for the attention of the listener were interludes of "typically warped Spectrox humour", the all-new Matrix Data Bank and a Local Group report.

Just under a year later, Spectrox returned with a new editor, Tat Wood, who helmed the magazine for four printed issues in total, the fanzine closing its doors for good in 1996.