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44:12
YouTube
Uncle Doug
Impedance Ratio: The Easiest Way to Decipher Output Transformers
Output transformers (OPT's) serve a critical purpose in tube amplifier circuits. To function properly, their primary winding must match the impedance of the output tube(s) while the secondary winding must match the speaker impedance. By determining the Impedance Ratio of an OPT, we can quickly determine its suitability for use with any ...
122.8K views
Mar 8, 2019
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