Here it is Myton Blonde. It is a very simple circuit but requires biasing the drain of all 3 JFETs to 4.5v to 5.5v to get it to work correctly. You can use MPF102, J201, 2N5457, J113 all with the same orientation but they must be genuine.
For very old etched boards, or first version fabricated follow this link: YUMPU
It does require free registration. It will ask if you want a Free trial when downloading, just click NO. Then download.
This information is now available on the Guides Page if you scroll down past the listed Build Documents for future reference.