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细节
A Gecophone two-valve amplifier
with two valves (S&S R type and Lustrolux"A"), in mahogany case with Gecophone and BBC transfers -- 10in. (25.5cm.) wide
with two valves (S&S R type and Lustrolux"A"), in mahogany case with Gecophone and BBC transfers -- 10in. (25.5cm.) wide