calclassa
The A 20 was designed by Nelson who always wanted to design a small Class A amp.
BTW:
Nelson Pass did design a A20 in 1977 but I don’t believe he had anything whatsoever to do with the N.E.W. A20 or A20.1 it could just be a ripoff clone as Nelson I believe didn’t have any copy writes or patents on his original A20 for the diyer’s
" I emailed Nelson Pass and asked him about the rumors did he or didn’t he design it. Since he seems a modest man with a good sense of humor he simply said
"he was familiar with the product."
Bottom of page http://www.firstwatt.com/articles.html
It was a diy project or the diy’ers to make.
http://www.firstwatt.com/pdf/art_classa_20.pdf
Lot at the parts and power supply in the one above, the NEW insides looks pretty thread bear in comparison, especially the power supply caps, and output transistor count
https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTbFS3FA6uYjnrw8Kqg9YwrOfrTHtGCCvISgWGC9q8Rtbh0...
Cheers George