could someone explain this to me?

[deathbringer07]

ok, here is the full circuit of what i posted here maybe an hour ago. my main problem is the power supply. how do i connect that to the dpdt switch and how do i replace the batteries w/ a wall wart?

by the way here's the values:

Resistors
R1-R4, R9-R17 = 10k

Pots:
R5-R8 = 1M
R18 = 100k

Caps
C1-C4 = 4.7uF electrolytic
C5 = 250pF ceramic disk
C6,C7 = 100uF electrolytic

IC
LM301AN op amp

Trannies
2n5458 N-channel FET TO-92

[ambulancevoice]

what the hell is it?

[pjwhite]

That's really a dreadful excuse for a schematic. 

The dotted line indicates that the two parts of the switch are mechanically linked.  The+ side of the top battery should connect to the V+ when the switch is closed, and the - side of the lower battery should connect to the V- at the same time.
Just ignore the dotted line and the circle to the left of the top battery +.

[toneman]

not drawn correctly   (electronically speaking).
this looks like a bi-polar supply made from batteries.
this is where U have PlusNine and MinusNine relative to GND.

capacitors only show polarity on POS side.
drawing is confusing with "-" on caps.

little circles represent poles of a switch.
no circles on NEG of bottom battery.
i imagine U have a DPST switch.??..(that's DoublePoleSingleThrow)
the "dotted line" is usually an indicator of poles that are switched together.

The caps are filtering for the battery; not really necessary.
If the caps were .01mfd or .1mfd, no polarity needed.
These would be just "noise caps" since batteries do not need filtering.
Looks like to want to switch batteries to connect to Plus & Minus outs.
Need to add more switch poles (circles) to schematic....

try redrawing the circuit again......
afn
T

[deathbringer07]

updated*

[coxter]

what the hell is it?

looks like a 4 channel mixer

[deathbringer07]

yup it's a 4 channel mixer..

[caress]

you ned to build a bipolar supply for the +/- 9v.  use an L7809 for the +, L7909 for the -. 

here's a useful link...http://modular.fonik.de/soundlab/sl_psu.pdf

i'm pretty sure you can simply omit the 12v portion without any further modifications.  i'm using the same power supply for a spring reverb, although i'm using 12v.

[deathbringer07]

how do i wire the power supply to the dpdt switch?

[pjwhite]

To use with a power supply, remove the batteries from the circuit and connect +9V to point A, ground to point B and -9V to point C.  I hope this will clear things up a bit.