[Amps] Historical question-probably OT

[Peter Chadwick]

This ARRL Handbook is in pretty good shape - the cover is a bluey green. But it does go back to the days when a certain degree of technical knowledge was required, and the '20 year appliance operator' was somewhat less common -  and no 'SOB' - Shack On Belt -  types were around.
That amp seems to me to be somewhat ' voice - SSB - ICAS' rated, as was fairly popular in the early days of SSB. I doubt it would stand up to prolonged 2 tone testing.
Of course, an AB2 amp isn't in AB2 all the time when driven with SSB voice - only when it hits the grid current point. But without a low impedance bias supply, I suspect the splatter was pretty poor.

73
Peter G3RZP/W6