FDP Forum / Power Transformer / 2 messages in thread.

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Jul 23rd, 2017 04:19 AM        

I am looking at the Fender export transformer specs for a Supersonic 60. They show the heater current to be 3.75A when the amp is drawing 4.2A. (2x6L6=1.8A, 8x12a?7=2.4A.<br /> Does this not seem strange? I think it is because they are using the same tranny in the Hot Rod deluxe which is less demanding.


Contributing Member

USA / Virginia

Sep 18th, 2017 12:32 PM        

You can't really compare the output current of 3.75 amps directly with the input current of 4.2 amps, because those are on two different windings of the transformer. <br /> <br /> Transformer windings can have different number of turns and that changes the voltages, currents, and impedances.

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