OK hadnt heard of those.
Not having read your post and messing further I got the thing to work, it seems the problem was the sockets, the chips are in cheap pressed sockets, thats obviously a no no, so as a temporary measure which might well end up permanent I soldered the power pins in to the socket, I get a reasonably nice o/p waveform,, if I had some 'HC ones I'd put those in the latter stages.
I'll look at the LVC range next time I try something wacky like this.
Your right about the edges and harmonics, I have a gps receiver that gets wiped out by it, 5 feet away, I had to put ferrites on the cable to get it to work, but it shouldnt be bad if I build the divider into a old IF can.