John Curl's Blowtorch preamplifier part II

[hags]

Originally Posted by SY

How do you explain guys like Scott Wurcer, Bob Pease, Barrie Gilbert, Jim Williams, Bob Widlar, Bob Cordell, Nelson Pass, and on and on, who are far more successful and accomplished, yet are (or were) excellent explainers and never had to resort to insults and evasions when dealing with technical matters?

Hey, hey, add Charles Hansen please.

[john curl]

Here is one of the 'competition' preamps that beat me in the ranking. I had one for 10 years. It deserved its place in the ranking.

[Steve Eddy]

Originally Posted by john curl

It is hard to make a circuit point with just words.

So what about answering some relatively simple questions?

Previously I'd asked what "AC garbage" currents would be flowing through the transformer center tap node that wouldn't also be flowing through your "virtual center tap" node?

Are you saying you can't answer that without charts and graphs?

se

[hitsware]

Originally Posted by Steve Eddy

So what about answering some relatively simple questions?

Previously I'd asked what "AC garbage" currents would be flowing through the transformer center tap node that wouldn't also be flowing through your "virtual center tap" node?

Are you saying you can't answer that without charts and graphs?

se

(Not that I understand it a bit) But I think I remember Nelson
(on another thread) saying something about if the mains had
an assymetrical signal it would manifest in a full wave power
supply output, but not with a full wave bridge .

[vacuphile]

So is this about:

power.JPG

If so, any communicable ideas?

vac

[wahab]

Originally Posted by DF96

I would genuinely like to learn from John, but he makes it very hard work.

I thought you were acustomed to those famous for their
endlessness 60s BBC soap operas...

[Steve Eddy]

Originally Posted by hitsware

(Not that I understand it a bit) But I think I remember Nelson
(on another thread) saying something about if the mains had
an assymetrical signal it would manifest in a full wave power
supply output, but not with a full wave bridge .

Don't know that this has anything to do with it. And since John steadfastly refuses to elaborate on anything, I guess we'll never know.

se

[hitsware]

Originally Posted by vacuphile

So is this about:

Attachment 284822

If so, any communicable ideas?

vac

[hitsware]

Originally Posted by vacuphile

So is this about:

Attachment 284822

If so, any communicable ideas?

vac

OR:

[john curl]

OK, OK! Everybody learning about every permutation and combination of diodes and transformers to make a dual supply? There are others, why not show them?
What happens when you DON'T use the transformer in a configuration that allows a center-tap?