![File:Williamson amplifier with Peerless S265Q transformer.png](http://upload.wikimedia.org/wikipedia/commons/thumb/7/76/Williamson_amplifier_with_Peerless_S265Q_transformer.png/800px-Williamson_amplifier_with_Peerless_S265Q_transformer.png)
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current | 14:56, 12 February 2018 | ![]() | 1,528 × 1,037 (999 KB) | Retired electrician | {{Information |Description={{en|Frequency and step response of the Williamson amplifier. In 1953 the Naval Research Laboratory examined a bunch of audio amplifiers for their suitability in sonar applications; the samples included seven Williamson amps... |
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