Class D hybrid tube amp: help requested

[MeloManiac]

As a non-tech person, I'd really appreciate it if someone could explain this in 'lain terms':

• "In   classic   linear   amplifiers   at   high   frequencies   the   interelectrodes   spurious   capacitances   act   as  bandwith reduction elements.In linear amplifiers tubes with spurious capacitances of the order of few tens pF are only suitable for audio circuits, as they can not be used in radio frequency applications.Driving the same audio tubes in switching mode with positive grid, the effect of these capacitances is only in the reduction of the maximum slope speed at the edges of the switching signals.Audio   application   specific   triodes   (with   relative  high   spurious   capacitances)   can   provide   edges  within   the   tens   nanoseconds   range,   allowing   the   bridges   to   operate   at   several   hundreds   KHz  switching frequency.These   results   can   be   achiede   if   the   triodes   are   connected   by   the   means   of   matched   impedance  transmission lines, whose control the signal edge distorsions avoiding the effect of signal reflections along the line.The lines have also to be lenght matched in order to provide the same propagation delay for each signal edge coming from the grid drivers to the triodes or from the triodes to the load output."
  Source: http://www.studio-rts-ing-rampin.it/ampdiva/ampdivapdfdepot/ampdivawhitepaper1en.pdf

[Schu]

its a secret...

[kevinmi]

You need a decoder ring

[MeloManiac]

Thought so...