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Theater Power Amplifier 455D

Theater Power Amplifier 455D; Operadio Corp.; St. (ID = 1489897) Ampl/Mixer
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Theater Power Amplifier 455D; Operadio Corp.; St. (ID = 1489897) Ampl/Mixer
Operadio Corp.; St.: Theater Power Amplifier 455D [Ampl/Mixer] ID = 1489897 850x1200
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For model Theater Power Amplifier 455D, Operadio Corp.; St. Charles (IL)
Country:  United States of America (USA)
Manufacturer / Brand:  Operadio Corp.; St. Charles (IL)
alternative name
Operadio Mfg,
Year: 1935 ?? Category: Audio Amplifier or -mixer
Valves / Tubes 5: 57 53 2A3 2A3 5Z3
schematic requested
Main principle Audio-Amplification
Wave bands - without
Power type and voltage Alternating Current supply (AC) / 115 Volt
Loudspeaker - This model requires external speaker(s).
Power out 30 W (undistorted)
from Model: Theater Power Amplifier 455D - Operadio Corp.; St. Charles IL
Material Metal case
Shape Chassis only or for «building in»
Dimensions (WHD) 430 x 200 x 180 mm / 16.9 x 7.9 x 7.1 inch
Price in first year of sale 200.00 USD

Model page created by KiTae Kim. See "Data change" for further contributors.

All listed radios etc. from Operadio Corp.; St. Charles (IL)
Here you find 66 models, 43 with images and 31 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.