Note the comment indicating unsuitability for triode driver!
Crowhurst 1951 on feedback Alex used, some termed Schade, whoever he was.
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Paul Barker
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#1 Crowhurst 1951 on feedback Alex used, some termed Schade, whoever he was.
Note the comment indicating unsuitability for triode driver!
"Two things are infinite, the universe and human stupidity, and I am not yet completely sure about the universe." – Albert Einstein
#2 Re: Crowhurst 1951 on feedback Alex used, some termed Schade, whoever he was.
I believe Alex when he says that he had no access to these pioneering papers.
Personally, Alex's work inspired me to build 3 of his amplifiers back in 2013. They still are all in service today and continue to offer very high quality playback in my main system. I think that it is proper to give credit where it is due.
Otto Schade mentioned the "inverse voltage feedback" scheme in February of 1938:
https://www.dos4ever.com/uTracer3/Schade.pdf
Alex maintained that it was not the same thing. I did not do any further research as Alex had a schematic that worked with modern parts and I was happy with the results.
Thank you for the Crowhurst take on this subject. Fascinating reading!
Personally, Alex's work inspired me to build 3 of his amplifiers back in 2013. They still are all in service today and continue to offer very high quality playback in my main system. I think that it is proper to give credit where it is due.
Otto Schade mentioned the "inverse voltage feedback" scheme in February of 1938:
https://www.dos4ever.com/uTracer3/Schade.pdf
Alex maintained that it was not the same thing. I did not do any further research as Alex had a schematic that worked with modern parts and I was happy with the results.
Thank you for the Crowhurst take on this subject. Fascinating reading!
Whenever I feel blue, I start breathing again.