11-03-2025, 04:16 PM
Hello, I just finished splicing in new wire to a power transformer (Philco 45). The transformer is still out of the chassis. I did a continuity test on all leads to the core and got no readings. All AC reading are as expected but higher as expected being no load with power on the AC leads. Then I went and did something I have not done before having one meter lead on the 6 volt lead I then touched the other lead to the core and got about 40 volts using a DMM. I then did the same to all other leads except the primary ones. I get any where 40 to 150 volts. Since I never tried this before I don't know what to think. The core is in nice shape with no wax leaking. I checked my splices and found no shorts to the core. My leakage meter shows no leakage at all on the core with power applied. The transformer is plugged into and isolation transformer. Is this normal, if so where is this voltage coming from? I'm wondering if this is some kind of phantom voltage reading. Using a VTVM the most I get is 15 volts.
Dan
Dan




