REFRACTOR PROFESSIONAL OVERDRIVE
12
MAIN PCB: SOCKETS & ICS
Next up are the sockets. You can’t bend the leads of the sockets like you can with the other components,
so they won’t stay in on their own until they are soldered.
Again, it’s much easier to do all of these at once with gravity holding them in place for you, so you’ll want
do them before you do any of the taller components.
Installing the ICs
Don’t insert the ICs into the sockets just yet. We will do this in a later step, after we’ve finished soldering
the tallest components (the polarized capacitors). This information is just listed here for reference.
The legs of each IC are bent outward slightly during manufacturing, so they’ll need to be bent back
inward before they can be inserted into the sockets.
It’s easiest to do this by laying the IC legs against the table and bending the body itself so all four legs on
the side are straightened out at once. Then, flip it and do the other side.
ICs may have two different orientation marks: either a dot in the upper-left or a half-circle notch in the
middle of the top side. Some ICs have both marks. This shows which way the IC should be rotated when
inserting it into a socket (the socket also has a half-circle notch).
PART VALUE
IC1
TL072
IC2
TL072
IC3
TC1044S
