Rarely seen outside of Japan, this Williamson-based mono power amplifer used a pair of 6V6s in push-pull and a large Sansui-designed output transformer. Two 6SN7s were used, one for an AF amp and phase splitter, the other as a driver. Power output was around 15 watts.

Situated on the back panel were an octal socket to supply power to and receive signal from an external preamplifier, hum and balance controls and speaker terminals for 4, 8 and 16 ohms. Little else known about this amplifier.

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