In Reply to: ...worried about Z @ 120Hz... posted by Steve O on March 8, 2011 at 17:25:22:
The bit about 120Hz was an aside, really, but thank you for enlightening me.
My main point was how to explain my direct observation of the behavior of a circlotron with respect to capacitance in the filter(s), the more C, the better, deeper, more well-defined the bass. Please don't misconstrue this to mean that I advocate huge capacitors as a general approach to PS design. I bring it up only to find out how my observation (and that of several others) fits with JLHs post as quoted by Jeff, to the effect that large capacitors with attendant very low Z at low frequencies can compete with the output tube for current. The circlotron may be a special case when compared to typical output stages. (Yes, Jeff, I know I am among a small minority who use OTL amplifiers; I can live with that.)
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Follow Ups
- Thanks, Steve - Lew 20:22:24 03/08/11 (0)