I've checked all of the threads that I can find, but can't find my solution. Time to ask for help from the group.
I bought a Bakatronics FK804 pre built to control my BK, switched out C1 to a 2.2uF cap, hooked up to my SSR to verify that all is well before buttoning it up, and the SSR light is on solid. Tried all of the basics, cap polarity, even tried switching out to a 4.7uF, thought maybe my cap was bad, but no luck.
Using a 12v wall wart, getting 12v out, just no duty cycle - steady output. One interesting point that may help diagnosing this problem is that the transistor on the board gets really hot, really quick - tells me somethings wrong but I can't find it.