I ran across this helpful thread over at the Magnequest forum. Good if you build V72, V76 output circuits.
http://www.audioasylum.com/forums/magnequest/messages/1603.html
Also some interesting stuff at the home of the calculator that is linked to.
cj
http://www.audioasylum.com/forums/magnequest/messages/1603.html
Also some interesting stuff at the home of the calculator that is linked to.
cj