Hi,
I have put together a short book on regenerative radio receivers to
mark the 100'th year of the discovery.
It is available here:
http://www.webstore.com/Regenerative-Radio-Receiver-Book,name,1475447...
It explains all the main topics needed to make a regenerative receiver
work right first time.
I read a paper somewhere that the noise heard in a super-regenerative
receiver is actually fractal chaos and not thermal noise as had been
assumed. Anyway I don't cover super-regenerative receivers in the
book.