For my GM70 I got a power transformer. With the following windings:
900vac-0-900vac for the b+ ofcourse
and a 2,5vac-0-2,5vac (5A) for the 5c8s.
I wanted to test my 5c8s and so I wired up only the low voltage 2,5V. And never have been "bitten" or "tickled" by a low voltage.
However when I picked up the socket with rectifier tube that had just been wired with the 2,5v winding. I got "tickled" I.e. the feeling when you touch a high voltage exposed part (accidentally ofcourse).
So I decided to measure the voltage, finding it odd that I had just felt something weird. Funny thing was that when I got only one probe near it I could see a little blue "lightning" bolt reaching for the probe. (Around 1mm)
Is this somehow the 900vac windings introducing some kind of corona effect. Or some other high voltage artefact?
Is this standard or is something wrong with this transformer?
