Simco Antistatic Filmcleaner

[schlger]

Hello,
my Simco antistatic filmcleaner is out of order, the transformer is defective. It has a pair of 10 inch brushes with high voltage pins in a surrounding tubular cage. The high voltage transformer has no inscriptions, so I don´t know how to replace it. Does anybody know the details of such a construction? How high is the voltage? Is it DC or AC? If DC is it negative or positive at the pins? How much mA does it need at the secondary side?
I would be glad to get some hints.
Thanks, Gerhard

 

[AgX]

Voltage at transformers always is AC, as otherwise they will not work.

 

[AgX]

Such transformer has hardly a load to bear. So melted isolation, let alone melted wiring is (for me) beyond imagination.
Maybe a broken contact or wire outside the transformer proper.

 

[schlger]

Maybe a capacitor has burned out. I don´t know if there ist a rectifyer built into the high voltage transformer. So my question to those who are experienced in electronics is: Does the Simco filmcleaner (and other antistatic devices) use DC with the negative pole connected to the pins and the positiv pole connected to the housing or does it use AC?

 

[AgX]

Ionisators are designed as well as DC- and as AC-output devices.
For those countering electro-static AC should be the way to go, but that is just a assumption of mine.

 

[schlger]

Now a friend figured it out, the Simco uses AC. A capacitor was defective, that was melted into an nearly completely covered by the plastic covering of the transformer spools. He milled it out and interrupted a wire that connected it with the transformer. And then the Simco worked like before.

 

[AgX]

Without that capacitator?