McMICHAEL SUPER RANGE PORTABLE FOUR, 1932
The McMichael Super Range Portable Four is similar but an earlier version of the Duplex Four Type S. which in its sales literature is described as:-.
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A high efficiency four valve circuit is used, double gang tuned to indicate on the duplex scale (not fitted on this model). An automatic grid bias dispenses with a grid bias battery (grid bias required with this model) and automatically adjusts the reproducing valves to maintain unimpaired tonal quality throughout the life of the high tension battery. The set is contained in a handsome case of dark furniture hide, fitted with ebonite panels and controls, with nickelled panel fittings. For protection an aluminium valve screen is employed. It has four valves:- PM2 - SG215 - HL210 and DEP215.
Made between 1928 and 1931 it cost around 17 Gns.
Bruce Hammond Collection