untitled

See Chapter 4 for more information about choosing drill bit sizes for par-

ticular components and other advice about how to customize a box for

your projects. And guess what? We always advise that you use safety

glasses when drilling.

2. Slip the threads of the phono jacks through the drilled holes and
   secure with the nuts provided.


3. Slip the shaft of the on/off switch through the drilled hole and secure
   with the nut provided.


4. Slip the shaft of the potentiometer through the drilled hole and secure
   with the nut provided.


5. Slip the knob on the potentiometer shaft and secure with the set screw.


6. Feed the top half of the LED socket through the drilled hole from out-
   side the box and insert the LED into the top half of the socket from
   inside the box.


7. Slip the bottom half of the socket over the leads and snap onto the top
   half of the socket to secure the LED.


8. Solder the black wire from the battery pack to one lug of the on/off
   switch and solder an 8" black wire to the remaining lug of the on/off
   switch, as shown in Figure 12-11.

LED On/off switch

Screws and nuts securing the clamp Phono jacks Potentiometer

Figure 12-10:

Box with

on/off

switch,

phono jacks,

potentiome-

ter, and LED

in place.

292 Part IV: Good Vibrations