Mouser parts actually arrived today (that other Mouser box was some back ordered resistors I’d forgotten about …). I got the function generator built and mounted in a partially cut Intellijel 1U tile panel (I managed to snap my only .125" end mill cutting the outside profile, oops). The circuit works great and does some unexpectedly cool things. I’ll post the Mouser cart and pointers to other resources shortly.
I’ll get new end mills on Tuesday. In the meantime I’ll make some dimensioned panel drawings and post them.
Differentiator is next!
P.S. I’ve shipped all but the most recent couple of PCB-only requests. There are about 30 sets remaining.