I want the DI-124 design to work using EE16 transformer, but it's not working with it. It works fine w/o load. At about 200 Ohm load it drops to 9 V and at 100 Ohm load, the output is 0V. It does not turn on with a laod. The same circuit works like champ with EEL16 transformer, both transformer samples from PI. Any suggestions to make it working?