Masterclass: the tuning capacitor for choke input supplies

Capacitor input VS choke input power supplies in tube amplifiers.
Let's see the spectrum they cover, as these names are just the extremes. The value of that first capacitor determines where the supply is in that range (from zero to large).
I did not say in this video that TUBE RECTIFIED supplies favor up to 20uF input capacitance, ANYTHING larger WILL STRESS THE RECTIFIER TUBE. And YES, 99.99% of commercial amplifiers have 40-47uF VALUE IN THAT POSITION WHICH IS ALREADY COMPROMISED FOR THE RECTIFIER TUBE.
But all of that is the subject for another video...
Here we have this:

00:00 Introduction
12:10 The tuning capacitor explained
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