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In Reply to: RE: What this is all about posted by mach1 on June 26, 2012 at 17:50:20
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Your eloquence astounds me. It's funny how some people react when faced with the bitter truth.....
The bitter truth is, that you are one clueless individual mach1, and on this Forum, you always have been clueless.I was not going to post on this comment you made, I was just going to let it stand out as an example to knowledgeable others, of you being WILDLY-out-of-touch with reality.
The real truth is, a Serious Stereo 2A3 amp exists since 1989, which disproves ALL that you and your cronies say and think and so stupidly profess up here.
You have a right to say what you like, within reason. Go ahead, show me what else you got !!
Jeff Medwin
Edits: 06/26/12 06/26/12 06/26/12
The bitter truth is, that you are one clueless individual mach1, and on this Forum, you always have been clueless.'
Jeff, remember this thread ?
http://db.audioasylum.com/mhtml/m.html?forum=tubediy&n=132941&highlight=cathode+bypass+mach1&search_url=%2Fcgi%2Fsearch.mpl%3Fauthor%3Dcastlesteve%26forum%3DALL%26sortRank%3DNone%26sort%3Ddate%26sortOrder%3DDESC
Where the 'clueless' people had to teach you how to correctly calculate the -3db cutoff point of a cathode bypasss capacitor.
And you still don't get it.
I didn't read it, I DIDN'T READ IT THEN - OR NOW. When it comes to EE and Rk bypass formulas, I do not use those formulas. No loss at all.
I determine the amount of uF, (and the film cap bypass values which you are unaware of) by ear, bracketing uF values. Can't ever get an equal (or better) SONIC RESULT to "my" approach.... with ANY textbook Formula and pushing a slide rule.
That is an important point, you do NOT have to be an EE to come up with truly outstanding sounding audio amps.
MOST EEs stick to the formulas in RDH-4, and it stifles advancement in musical performance. They are unwilling to try unorthodox circuit approaches, like I am. Imagine a L non critical L1, why that must be heresy, but we have sure found out ...it isn't.
Cheers.
Jeff Medwin
Jeff the point is you posted'You do not want the -3 dB point on the Rk of the driver and final stages to be the same frequency, or to "stack" on each other. If you use a 10 uF WE cap ( I'd prefer the 6.8 uF GE film with bypass over the WE513C-dealer's choice) you are at 3.97 HZ. The values I suggested for the SRPP's 270 ohm bypass, 60 uF to 75 uF will pretty much guarantee they do not stack at the same frequency.'
At the bottom is a handy calculator I often use, 'hope you and other Members enjoy it.
This is just plain wrong wrong wrong: the -3db point is NOT 3.97Hz. You present yourself as some sort of design guru, so some innocent newbies are going to believe this garbage. This is my issue. When you do things like this you spread disinformation.
'When it comes to EE and Rk bypass formulas, I do not use those formulas. No loss at all.'
No you just tell all and sundry to use the wrong ones.
The calculator you linked has not and never will spit out the correct -3db points. What intrigues me is why you would use it in the first place, since you design 'by ear'. As I stated before, these threads are not about logic and reasoning they are about egos. And you still don't get it.
Edits: 06/27/12
Move on.
To totally disprove the BS what you and your cronies put forth up here.
Guess what, that one amp exists, the best 2A3 amp ever produced, and it disproves any baloney you try to post on this Forum.
Jeff Medwin
'Guess what, that one amp exists, the best 2A3 amp ever produced, and it disproves any baloney you try to post on this Forum.'
Jeff, you could not possibly have heard all the 2A3 amps in the world, so how can you make that statement?. Your brain is a logic fee zone. What you just posted was a used car sales pitch at best. Does Dennis pay you a commission?
Unless that one amp is made with pure silver transformers, then it has no chance to be the best 2A3 amp ever produced.
Donald North
nt
There's certainly nothing wrong with silver-windings in a transformer, but (ask Mikey at Magnequest) there's SO much more to good transformer design.One thing I might mention here is that the same conductor INSIDE the transformer's windings behaves differently than the same wire OUTSIDE the transformer (lead-outs).
A word to the wise.
---Dennis---
Edits: 07/08/12
"the same conductor INSIDE the transformer's windings behaves differently than the same wire OUTSIDE the transformer (lead-outs)" ?
Please explain.
This is only my idea, so don't consider it the last word on this subject.You should confer with transformer and motor designers-- not just builders on this.
My own idea is that wire INSIDE a Transformer's Magnetic Field is part of a reaction between the conductors inside the Mag. Field and the laminated core which is storing and releasing energy. The output wiring that is INSIDE the transformer's Mag.-Field can thus be viewed as the output winding of a generator-- as far as this wiring's output loop is concerned.
Wiring that is OUTSIDE of this generator is merely a conductor. Energy losses there are far more than losses that occur INSIDE the generator-- it tends to self-correct its own losses, because it is part of an energy-storage/delivery system-- which tends to DELIVER on demand--not RESIST on demand.. (The transformer laminations are storing and releasing energy-- this system tends to self-correct-- to some extent).
A mere conductor, operating in empty space has no mechanism to self-correct. It is-- basically-- a resistor, although in both cases, we're also dealing with capacitance and inductance as well. Capacitance and inductance are greater INSIDE the transformer.
If you're going to use Silver, THE most important place to use it is in the output leads of your transformers/chokes-- and in all of your amp's wiring.
The LEAST important place to use it is in the transformers INTERNAL wiring-- although using it there will also result in improvement-- but improvement there will be much less than it is in output leads and in general wiring.
---Dennis---
Edits: 07/08/12
'The real truth is, a Serious Stereo 2A3 amp exists since 1989, which disproves ALL you and your cronies say and think and so stupidly profess up here.'Sorry Jeff I don't quite get the connection (or the grammar). But then again, these threads have never been about logic and reason, just a giant ego bigger than Texas.
Edits: 06/26/12
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