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G6Tanuki · 19th Feb 2018, 9:29 pm

See here: https://en.wikipedia.org/wiki/Class-D_amplifier

It's not a new idea: there were attempts made in the 1930s to build such amplifiers using Thyratrons, but their switching-speed [or rather, the recovery-time after the gas had been ionised] was too slow.

19th Feb 2018, 9:29 pm	#2
G6Tanuki Dekatron Join Date: Apr 2012 Location: Wiltshire, UK. Posts: 13,996	Re: Class D amplifiers. See here: https://en.wikipedia.org/wiki/Class-D_amplifier It's not a new idea: there were attempts made in the 1930s to build such amplifiers using Thyratrons, but their switching-speed [or rather, the recovery-time after the gas had been ionised] was too slow.