Alternator question

Been working so finally found time today.
Heres some tests I performed, working by myself so all cranking tests were done with key "on" and crossed at starter relay. If that makes a difference?
Tests.
Key on ballast unhooked, 10.69 V at light blue wire with yellow tracer.
#2 key on coil +ve 5.75V
#3 key on coil-ve 1.4V

#4 cranking from coil tower 3.6 mV
#5 swapped coil and same test as 4. 5.3mV
#4 and #5 produced no spark obviously.
Could it be distributor pickup?
Thanks again all.