Hi all,

I found this schematic on the web, and can't quite understand what the
TL081 op amp does. Obviously, it's some sort of ripple reducer, but
what does it do and how does it work?

The authors ISP returns errors with the 2 published email addresses
on the website.

The entire web page is he

http://charliethompson.50megs.com/Lo...eHVsupply.html

Thanks,

M