The limit of zero power.
The infinitesimally small power.
This was thought while browsing through the datasheet of the DL33 electron tube with filament for use in battery operated equipment.
The infinitesimally small power.
This is what analog electronics is about. A class A amplifier (electrons flowing all the time).
Amplifiers approaching in resolution the granularity of matter.
The size of an electron.
Not very unlike modulated molecules on vinyl records. The wavelength of modulation inside a record groove being so small as to be comparable to the size of the wavelength of light.
How would a direct heated DL33 electron tube operating in class A sound like with an output of 250mW?
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