The AA-903 mono integrated amplifier was a 10-watt Williamson-based design, and used a combination of Pilot's existing AA-902 mono power amplifier and PA-912 preamplifier.

Two 6V6GT tubes were used in the output stage coupled to an output transformer which was constructed with interleaved windings. Distortion was 1% at 10 watts and 0.1% at 1 watt

Separate bass and treble controls were provided along with inputs forPhono, Radio, Aux I and Aux II. Record equalisation settings were for LP, NAB, AES and FOR (foreign).

Priced at $69.95 when new, today expect to pay around $80 - $100 for an average, working example and up to $200 for a pristine one.

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