Originally posted by Lman
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Hi all,
Long time reader and follower, I have been shy to post my thoughts as I started self-teaching myself electronics just two years ago. Being a musician by education and practicing sound engineer, I could not resist posting after I have seen the recent videos of John Bedini.
One word - amazing.
What John has shown us in these videos is that an amplifier is just an amplifier. And because it says audio it means that it is calculated to the audio specification required, but it does not mean that it can not be used for something else. And in the case of the linear current amp (which is also the Solar Tracker 5 technology ) John has done it in the most efficient and clever way I have seen.
John K, Faraday88 and all non audio guys, I recommend you do some 5-10 minutes research about the different audio amplifier classes. If I get it, you will get it for sure. And knowing now that an audio amplifier can be used for other uses it is good to know the different circuits.
http://www.audioholics.com/audio-amp...lifier-classes
http://en.wikipedia.org/wiki/Amplifier
In short Class A amplifiers are said to be the cleanest sounding but most inefficient class - about 20%. The transistor or vacuum tube is driven through the whole 360 degree cycle of the sound wave, and this is the reason for the heat. Also there is so called quiescent current, meaning it is still conducting some current when there is no audio fed to the amp. With the Class B efficiency raises but so does the distortion, and this is the reason for a new classes like AB1, AB2, D and some hybrids. So with audio it is a trade-off between advantages and disadvantages.
Talking about solar charging now you do not have this inefficiency because all depends on the sun. The sun goes up, it starts conducting. The sun goes down - the conducting ... well, probably does not stop if it catches the shining stars or the moon
What else has John shown us ? That while charging the battery we can take power, and it is not coming from the battery but from the supply first (solar or not). Just think about the implementation of that. You can come up with some ideas I am sure. I do not know any other solar product that can do that, without destroying the battery.
What else ? John mentioned generator mode in the video with the SSG ... just think about what happens when the charging battery is topped. That is the bomb for me.
Guys, if you understand all of this you would know that this is a priceless product.
Doing some research about the terms John used in the videos, I have found some links that would give hints and shed some light on what he is talking about in the videos :
http://www.electroschematics.com/668...dio-amplifier/
http://www.reuk.co.uk/LM317-High-Cur...-Regulator.htm
Not the way John has done it but gives some clues.
John B., correct me if I am wrong, but is not also a capacitor multiplier applied along with the Beta multiplier ?
Also, I am sure you have done it but if the linear current amplifier is coupled with a tube would it gain some sonic quality ?
I wonder if there is a clever way to harness the heat of the amp to heat the cathode of vacuum tubes. That would be fun to experiment with.
You have said in another post, that that audio amp would outperform tube single-ended class A - I suppose sonically, but how efficient is compared to the others ?
If I got it right it is also more efficient than the others.
And last but not least, as this is my first post in the forum I would like to say for lack of better and stronger word, thank you John Bedini for everything you have done for us opening our eyes, ears and minds. Thank you for sharing your knowledge and explaining your technology and circuits patiently to whoever wants to know it all around the world. This suits only to the wiser.
And if there is something that makes me a little sad, it is that you are better known around the world with the alternative energy products than the audio products. I wish that it was not like this as I know that the audio is your first passion, but this is another subject.
The word thank you just lost its power when it comes saying it to you John. This is how I feel learning about the linear amp and upgrading my knowledge about this technology. If I say it 1000 times it would be better but not enough, would 1001 do it ?
Sincerely
Lman
Long time reader and follower, I have been shy to post my thoughts as I started self-teaching myself electronics just two years ago. Being a musician by education and practicing sound engineer, I could not resist posting after I have seen the recent videos of John Bedini.
One word - amazing.
What John has shown us in these videos is that an amplifier is just an amplifier. And because it says audio it means that it is calculated to the audio specification required, but it does not mean that it can not be used for something else. And in the case of the linear current amp (which is also the Solar Tracker 5 technology ) John has done it in the most efficient and clever way I have seen.
John K, Faraday88 and all non audio guys, I recommend you do some 5-10 minutes research about the different audio amplifier classes. If I get it, you will get it for sure. And knowing now that an audio amplifier can be used for other uses it is good to know the different circuits.
http://www.audioholics.com/audio-amp...lifier-classes
http://en.wikipedia.org/wiki/Amplifier
In short Class A amplifiers are said to be the cleanest sounding but most inefficient class - about 20%. The transistor or vacuum tube is driven through the whole 360 degree cycle of the sound wave, and this is the reason for the heat. Also there is so called quiescent current, meaning it is still conducting some current when there is no audio fed to the amp. With the Class B efficiency raises but so does the distortion, and this is the reason for a new classes like AB1, AB2, D and some hybrids. So with audio it is a trade-off between advantages and disadvantages.
Talking about solar charging now you do not have this inefficiency because all depends on the sun. The sun goes up, it starts conducting. The sun goes down - the conducting ... well, probably does not stop if it catches the shining stars or the moon
What else has John shown us ? That while charging the battery we can take power, and it is not coming from the battery but from the supply first (solar or not). Just think about the implementation of that. You can come up with some ideas I am sure. I do not know any other solar product that can do that, without destroying the battery.
What else ? John mentioned generator mode in the video with the SSG ... just think about what happens when the charging battery is topped. That is the bomb for me.
Guys, if you understand all of this you would know that this is a priceless product.
Doing some research about the terms John used in the videos, I have found some links that would give hints and shed some light on what he is talking about in the videos :
http://www.electroschematics.com/668...dio-amplifier/
http://www.reuk.co.uk/LM317-High-Cur...-Regulator.htm
Not the way John has done it but gives some clues.
John B., correct me if I am wrong, but is not also a capacitor multiplier applied along with the Beta multiplier ?
Also, I am sure you have done it but if the linear current amplifier is coupled with a tube would it gain some sonic quality ?
I wonder if there is a clever way to harness the heat of the amp to heat the cathode of vacuum tubes. That would be fun to experiment with.
You have said in another post, that that audio amp would outperform tube single-ended class A - I suppose sonically, but how efficient is compared to the others ?
If I got it right it is also more efficient than the others.
And last but not least, as this is my first post in the forum I would like to say for lack of better and stronger word, thank you John Bedini for everything you have done for us opening our eyes, ears and minds. Thank you for sharing your knowledge and explaining your technology and circuits patiently to whoever wants to know it all around the world. This suits only to the wiser.
And if there is something that makes me a little sad, it is that you are better known around the world with the alternative energy products than the audio products. I wish that it was not like this as I know that the audio is your first passion, but this is another subject.
The word thank you just lost its power when it comes saying it to you John. This is how I feel learning about the linear amp and upgrading my knowledge about this technology. If I say it 1000 times it would be better but not enough, would 1001 do it ?
Sincerely
Lman
Thanks very much Indeed!!! will leisurely go through the links, by the way I'm a good singer
Best Regards,
Faraday88.
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