[sdiy] power supply pain

[Gavin Russom]

Hi there
So I built my own power supply for my modular (which I know everyone
reccomends AGAINST) but the reason I did it was because I needed +12, +9,
+5, -5, -9, -12 outputs but couldn't find a suitable one for sale.  I built
it and it tests perfectly at all the outputs.  But when I hook it up to my
ADSR that runs off +5 the voltage immedeately drops to about +2.2 volts,
even if i test it at the output of the power supply.  If I run the ADSR off
a 9volt battery it works perfectly, but if I connect it to the +9 of the
power supply again the voltage drops to about +4.3 volts even at the supply
output.  If I hook up the ADSR to the +12v out put the voltage doesn't drop
but its too much voltage for the ADSR.  The power supply uses a 7812 to get
the +12V, then taps off a resistor network to get the +9, and goes through a
resistor network and a 7805 to get the +5.  The variable voltage source
that's tapped off the same resistor network works great no matter what its
hooked up to.   Any suggestions?   I'd even buy one at this point if it had
the right outputs, but I'd rather fix my own!
thanks
MYSTIC