AMI T8 issue

Howdy all, Sorry for the cross post. I'm building four KM84s. The gain on the first two turned out fine with AMI T8's that came in one box. I built the next two mics with a T8 pair from a second box and they are super, super quiet . The quiet mics are wired identically to the first two mics. The wiring on all transformers looks the same. I pulled the T8's from the quiet mics and took these measurements:

Blue pair: 215 ohms (same as first pair of T8s)
Grey pair: 22 ohms (same as first pair of T8s)
1V sine wave @1kHz on blue = .046V on grey
5V sine wave @1kHz on blue = .238V on grey
1V sine wave @1kHz on grey = 2.3V on blue

Unless I'm wrong (which is quite often the case) that gives an almost 22:1 ratio on the pair of quiet T8s? They are supposed to be 7:1. Am I wrong on my math or technique? Just trying to rule these out before I troubleshoot elsewhere - or before I reach out to AMI.

Thanks,
Roger

Edit: measured at 1kHz not Hz

1Hz is waaaay too low a frequency to judge anything from...

Jakob E.

Sorry! Missed a "k" in there. Measurements were at 1kHz.