In addition to the 0.1 inch header carrying all the oscillator signals, the board also has a BNC output socket making a handy hook-up option for those who want to use it in e.g. a signal generator.
Here, in the open-source spirit fundamental to the Arduino platform, is the schematic...
The new VFO is described over on the "Kanga Resources" page.
I'll let you know when Dennis gets the new DDS shield up on the Kanga website, so you can send in your order HI HI.
...-.- de m0xpd