After hooking up my trafo, i got a nice 12.1 v/ - 12.0 v and a nice 15.1 V however the - 15 volt was -16,8 V !!!
Now i already replaced the 7915 for 3 times now but the value stays about the same. When i measure after the bridge rect. i get on both sides 26,3 Volts. I dont get it , CAn the 1000Uf cuase this? its the only thing between the 7915 and the bridge.
Or is my input voltage way too high for the 7915, i bought a 2 x 18 V wich when i measured gave me 2 x 20 Volts
Any one??
I did measure this without any ic in the circuits, that doesnt matter right?