I came by this one on the net. It looks like a copy of some free booklet handed out by Siemens. And I could not find any copyright statement on it. As the content is not changed I presume it should be OK to share it as is

 

This is the 1966 edition

 

This is the 1970 edition

 

This is the 1971/72 edition

 

Thank you.

 

Thank you for your ebook

 

This is the 1971/72 edition

Thank you so very much. This answered many questions for me.

 

First circuit in 1971 is one of my favorites, 2 transistors with programmable gain. Almost a primitive op-amp!

 

Haven't had a chance to look at them, but thanks for sharing!