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gptkbp:instanceOf
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gptkb:audio_equipment
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gptkbp:amplifierType
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vacuum tube
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gptkbp:circuitTopology
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four-stage design
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gptkbp:countryOfOrigin
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gptkb:United_Kingdom
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gptkbp:designedBy
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gptkb:D.T.N._Williamson
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gptkbp:distortion
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very low for its time
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gptkbp:feedback
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uses global negative feedback
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gptkbp:firstPublished
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1947
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gptkbp:frequency
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10 Hz to 20 kHz
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https://www.w3.org/2000/01/rdf-schema#label
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Williamson amplifier
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gptkbp:impedance
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100 kΩ
8 Ω
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gptkbp:influenced
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high-fidelity amplifier design
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gptkbp:inputStage
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double triode voltage amplifier
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gptkbp:legacy
|
widely copied and adapted
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gptkbp:notableFor
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high fidelity audio reproduction
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gptkbp:notablePublication
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gptkb:Wireless_World,_April_1947
gptkb:Wireless_World,_December_1947
gptkb:Wireless_World,_May_1947
gptkb:Wireless_World,_September_1947
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gptkbp:operatingClass
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Class A
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gptkbp:outputTransformer
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high-quality output transformer required
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gptkbp:outputTubes
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gptkb:6L6
gptkb:EL34
gptkb:KT66
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gptkbp:phaseSplitter
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cathodyne phase splitter
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gptkbp:powerOutput
|
15 watts
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gptkbp:powerSource
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high voltage, typically 400V
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gptkbp:publishedIn
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gptkb:Wireless_World
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gptkbp:uses
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push-pull output stage
triode-connected KT66 tubes
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gptkbp:bfsParent
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gptkb:Williamson
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gptkbp:bfsLayer
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5
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