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The Truth About HiFi Amplifier Power Supplies

egellings

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I remember that those Sola V-regulating transformers got really hot in operation.
 

egellings

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That is correct. The output waveform is severely distorted and flat topped. The flat-topping is largely responsible for the heating.
 

atmasphere

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That is correct. The output waveform is severely distorted and flat topped. The flat-topping is largely responsible for the heating.
Right. And also an indication of harmonics, some of which can mess with power transformers (5th harmonic) and the like. This is a reason that ferro-resonant regulating transformers can be a source of noise in audio systems.
 
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