hi Larry
yes i have checked all your tips according with schematic the ground pin are 12 and 13
cheked with digital oscilloscope there isn't signal at pin 14 i think the si5351a don't work or it is damaged
to use at moment the rtx i will found the original vfo on board to complete with L4 and C93.
L4 wich toroid is? t37-6? how many turn i must made on it?
thank you
i will order a new si5351a to test the raduino board
73
Aurelio IZ8EGM