Doesn't look too good... Check the datasheets and do
some math:
http://www.fairchildsemi.com/ds/MC/MC78T05.pdf
**broken link removed**
**broken link removed**
Biggest problem is the pinouts:
For the 7805 should be:
1 - input
2 - gnd
3 - output
For the LM317 and LM1117 it is "rotated":
1 - adj/gnd
2 - output
3 - input
Next thing is minimum voltage drop should be ca 2.5-3V for all
of the regulators to achive any kind of stability.
For example to get 5V out of MC7805, you must feed it with
at least 7.5V (this is bare minimum!!! better try 8-9V).
Same applies for the other two. If you want 3.8V output,
then 3.8+2.5=6.3V which is again bare minimum (7V is ok).
I suggest rising 5V to 7V by putting three diodes in the GND line
of the 7805 regulator or switching to 7808 regulator.
Either way you will loose 5V output. If you need all three voltages
try powering all regulators from same source instead of cascading
them. If the input voltage is much higher than what you expect
on outputs and current is big, heatsinks are not only required but
maybe not enough. In this case you might want to look for switching
regulators to improve efficiency...
Also make sure that input power is well filtered.
Capacitor of only 0.33uF is not enough if you plan
on using this after bridge rectifier (try 4700uF or more).