Testing done on the first of these, haven't found the 4 wire/2 wire one yet, but hey, I cleaned up my bench over the weekend, I can't find anything!
ENi transformer on the Octopus transformer tester- perfect in all respects. Producing way more HV to turn on the Zedner regulator I added to the tester this morning at 908V DC.
Color wire transformer- here's where the Octopus come in handy. We can guess the pairs of winding by using an Ohmmeter, to check their DCD resistance, one is normally 5 Ohms, the other more but not a lot, but enough to identify, and the HV one is always way higher than the other two. What we don't know is the polarity of each winding. These HV generators nee the polarity just right on all 3 windings or nada. Try that with a power transformer, you get an explosion! Once I got the polarities all in line this transformer also produced HV output, but below the level required to activate the Zeners. By reading it's in the 850V range. Probably good for most GC work, but we really need the regulator online to get the best performance. This is at 3V. I can and will try higher, but that's not the point, I think.
Next I'll scare up the 4/2 wire job.
Geo
