|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
72.235.7.37
In Reply to: RE: Here you go. posted by Chip647 on July 21, 2014 at 05:12:58
I read this one but it isn't the one I found awhile back. He actually followed up and built an amp using these ideas. It was a recent post and it included a schematic of the amp he built. Its too bad that there is no search engine in his website. cheers, Dak
Follow Ups:
You could ask him.
Still, you should be able to back into his implementation if you use some basic current analysis. You cannot get around the physics that the heater will consume 600mA and therefore must be supplied with +600mA. There is no way the plate current from 2 6550 tubes can do this. He would have to put a CCS below the heaters, but that would mitigate any "free lunch" supply.
I think this article should clarify the "free DC" heater supply concept, the heaters are connected in series, not in parallel which consumes too much current as you pointed out.
You can restrict Google to his site by appending site:tubecad.com to the end of your search terms.
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: