diytube.com

Here is one way to do it:

http://www.tubeaudiolab.com/id94.html

Sounds better than any of the ST-70s that I built using a PCB. It is so quiet that I thought the amp was dead until it started playing music. Love the circuit by Shannon too! -Min

Very nice!

Nice job Min ! Now you see why they made PCB's !
Too many parts to easily do by hand.