[Amps] FW: Power factor correction on tube amps

[KA4INM]

On 03/07/13 18:07, Matt KM5VI wrote:

> Help me out here guys...

> I thought that conventional power supplies (transformer-bridge-filter) were
> relatively clean on reflected harmonics?

   No, the transformer is all inductive and the diodes conduct for most 
of the sine wave, but not all, at that transition the current changes 
abruptly causing distortion.
   (The capacitors are polar and not able to compensate for the 
inductance in the transformer.)
-- 
   Ron  KA4INM - Youvan's corollary:
                 Every action results in unwanted side effects.