Transformer half wave rectifier inbalance in voltage

[ZeTeX]

Hi 
I have the following schematic on breadboard:

Where V1 is 230/12V 3VA transformer, that outputs 15VAC RMS no load.
C1/C2 are vishay 470uF 50V caps.
D1/D2 are just jellybean diodes

The issue I'm having is that the voltage is not equal on the caps, for the positive cap (C1) I measure about 20V no load and with 240ohm load I measure about 14V, and for the negative cap (C2) I'm measuring about 7.50V no load and with 240ohm load I measure about 6V~.

Why is it so?

[PA0PBZ]

Swap the diodes.
Does the problem move?
Yes -> bad diode.
No  -> bad cap.

[ZeTeX]

Swap the diodes.
Does the problem move?
Yes -> bad diode.
No  -> bad cap.

Fixed! Bad diodes.
thanks!

[Audioguru]

The extremely high unlimited inrush current blew up the little low power diodes. Why not use rectifier diodes made to do what you are doing? 1N4001.

[ZeTeX]

The extremely high unlimited inrush current blew up the little low power diodes. Why not use rectifier diodes made to do what you are doing? 1N4001.

I'm using 1N4007 anyways, I might have shorted out something that killed the diodes, but it fixed now anyways.