Test Signals 1.pdf

pdf looks like there is a significant effort here!  But there's no sheet.

Are you advertising for sale?

Hi!

I publish for any of the reasons you mentioned. I do it for generosity to the Youths newbies interested in the subject, and I hope to do it right ... then if there will be unexpected developments, they are welcome. But I do not think there will be, the subject being very old, namely of the last century.

Bye