Transformer pinout?

[dog80]

I have a small board mounted transformer that I desoldered from a PSU. It has a EEL-16-2005 marking and is probably the same as the one in the middle in this picture:

http://www.it.com.cn/f/diy/058/25/20050825_csdy_bmeng_10.jpg

I want to determine the pinout. I tried to find a datasheet but had no luck.

It has three pins on the one side with a single strand of wire each (guess this is the high voltage side) and there are five pins with multi strand wires on the other side.

I tried supplying 16 volts AC on the high side but it was drawing too much current.

What am I doing wrong?

[mariush]

Those transformers are designed to run at high frequency (40kHz-100 kHz), they won't run properly at mains frequency (50-100Hz). It's almost useless to you, it's not the same thing as a regular, classic transformer.

[Skippy]

Specifically it's a Flyback transformer

[Phaedrus]

The two smaller transformers will be of more use. One of them should be a 1:1 isolation transformer, and another should be suitable for a single transistor forward +5V DC power supply from mains.