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This Post Has Been Edited by the Author
In Reply to: RE: Is Choke filter widely used in Tube Amp? posted by michaelv20850 on July 03, 2007 at 12:20:49
As Al said those are output transformers.Basic tube amplifier designs use output transformers because tubes are voltage amplifiers and speakers are current driven devices.
In this case the transformer "transforms" the high voltage/low current output of the tubes into low(er) voltage/high(er) current to drive the speakers.
Edits: 07/03/07Follow Ups: