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Country United States of America (USA)
ManufacturerFederated Purchaser, Inc. (Acratone, Acratest); New York City (NY)
Year 1934 Audio Amplifier or -mixer
Valves4: 6A6 6A6 6B5 6B5
Power type Storage Battery for all (e.g. for car radios and amateur radios) / 6 Volt
Model Acratest - Acratone 47 - Federated Purchaser, Inc.
Dimensions (WHD)10 x 5.5 x 8 inch / 254 x 140 x 203 mm
Net weight 20 lb (20 lb 0 oz) / 9.080 kg
Initial price49.50 USD
Source of dataThe Radio Collector's Directory and Price Guide 1921 - 1965
Circuit diagram referenceRider's Perpetual, Volume 7 = 1936 and before