Does feeding a signal transformer with DC current produce an asymmetric saturation waveform ie even harmonics too?
Must it be a low current as DC overdoing the core may create too must distortion.
The production of even harmonics may make the magneticaly saturated sound even nicer,
Is this another reason why Neve preamplifier class A (electrons flowing all the time) output stages (single ended transistor) passing DC current through the output transformer primary sound great? Or for the same reason electron tube single ended class A power amplifiers with no negative feedback?! DC carrying transformers have an air gap in their design to avoid magnetically clipping the core.
The word air gap is also used on magnetic tsoe recording heads. Dies it make performance even more linear at small signal levels?
An interstage transformer may be suitable for analog simulation exoeriments. The DC current passing at the primary and non existent at the secondary will do the coupling without the need of a capacitor. Voltage can be stepped up. And the interstage transformer when constant current fed with respect to frequency can simulate tape recording, reproduction. Constant current can be made by feeding it through a high resistor. The voltage drop at the resistor will give the rising frequency emphasis slope.
The secondary stepping up the signal, may make it high enough to feed the de emphasis (high cut) instateneous playback preamplifier.
Will this sound as good as very very high reel to reel magnetic ape speeds with excellent high frequencies and in general excellent signal conditioning saturating characteristics? Will it increase the average signal without affecting the quality of the music as the best reel recorder or FM Optimod (Orban) processor?
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