wrong voltage 7905?

Hi,

I need some help figuring this out and YES I am a noob :D

The problem is that the voltage I am seeing after the 7905 is about -8.5V when it clearly should be -5V

I have tried several 7905's with the same results.

I do get +5V from the 7805.

and I get -12V and +12V directly after the rectifier

I have used the same 7805 and 7905 with a ATX power supply with +/-12V and that works great.

I have attached the schematic.


Any ideas would be great.

Thanks.

Attached Images

schematic.jpg (61.8 KB)