It was in the late 70s that the name John Lindsay Hood first came to my attention in the pages of the now defunct mag.-Electronics Today International[ETI].
In a series of articles introducing his new Hi-Fi amp design over a space of a year John in a lead -up to his 80Watt[RMS] Mosfet power amp he went into great detail about several issues one being his discovery of the different sounds of capacitors when applied to a music signal.
John listened on his own Hi-Fi set up to hear the difference. He drew up a short list [at that time 1980 exotic capacitors weren't available]
The list in ascending order from bad to good is.
John was heavily criticized for this from the UK/US/Europe/Australia/New Zealand by other ADEs this went on for along time along the lines of-How could a man of his standing say this/I don't believe it/ and worse.
It wasn't until another ADE -Cyril Bateman said enough is enough and set out to prove -one way or the other-if there was any truth in it-Please remember-Subjectivism is "not an allowed expression" in EE circles even though the whole human population listen that way.
In along series of articles circa-2002 in Electronics World he built and designed cutting edge test equipment of extremely low distortion and under conditions where DC is applied to the capacitors and an AC signal is sent through them he tested all the ones John stated he tested subjectively .
And guess what??--Of the ones John stated they were ALL in agreement with his results-scientifically tested. He did add "back to back" electrolytics as better than the standard ones and COG ceramic as having very good distortion figures.
Did any body apologize ???-what do you think?
Not long after sadly John left us.
I miss his words in electronic magazines-I built his 80 W amp and other audio and test equipment.
It all worked exactly as he said.
For this alone John deserves his place in history. And I hope he gets it.
In another post I will talk briefly on his ideas on Star-Earthing in SS Equipment of which John was at the head of.