1983 Sony BHF 90 Audio Cassette

As normal bias tapes went in the early ‘eighties, Sony’s offerings were pretty good. This is a 1983 Sony BHF 90 – the BHF being a step up in quality and definition from the lowly Sony CHF. Visually, these were an upgrade on the BHFs from the previous year, featuring a sort of metallic foil finish on the label rather than plain paper as in 1982. There may possibly also have been a slight improvement in sound, but my recording equipment in the early 1980s was so poor, and of course so much time has now elapsed since these tapes were new, that it’s very difficult to tell. These are good tapes though – with considerable treble response for normal bias ferrics.