Re: Class D amplifiers.
A, B, C are well-defined. D is a reasonable bet, and then all the subsequent letters are a bit of a dog's breakfast. So many people and firms have been claiming letters for marketing purposes, sometimes the same letters. There is no regulating authority. If you want to claim a new letter for your audio amp or broadcast transmitter, just go ahead.
D probably means some sort of switch mode, but there are several variants with major differences so you need something more specific.
For later letters, forget them, go straight to the specifics.
David
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Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done
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