84B

Only Bunis/Slusser shows the model 84B, and some collectors pretend to have it. There are still some doubts that this is not correct. Being a Battery model and in an 84 cathedral cabinet a "B" (for battery) was added, while in fact it is an 84Q!

In August of 1931, models 80 and 82 were introduced to replace the model 84.  The model 84 had been discontinued at that point.  The model 84 was Atwater Kent's first set to use the type 47 pentode and highly advertised as such. Additionally, the new cabinet (cathedral) was touted as a compact, which was markedly smaller than all previous console sets.  The new type 47 tube could produce as much power as two of the type 45 tubes and considered a major improvement. True, there never was a model 84B.  It was Philco that added the 'B' to their model number (ex: 90B) to indicate the cathedral version, with the 'B' standing for their 'Baby Grand'.

Atwater Kent used the suffixes F, D and Q to represent models for 25 Cycles, Direct Current and Battery powered sets. The three variances normally used the same cabinet.   Later the Z was used to represent the 32 volt DC sets.  There are only a couple of exceptions to this.

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Tous les appareils de Atwater Kent Mfg. Co.; Philadelphia, USA