StewMac 66 D-REVERB, Руководство по сборке

Страница: 13 / 68

stewmac.com
11 ©2019 StewMac
STEP 11
Drill the bias boards
The small bias board mounts near the
front left corner inside the chassis as
indicated by the dotted line in the
photo above . Center the taped bias
board and insulator over the two
mounting holes . Holding the boards
in place inside the chassis, use a sharp
pencil from the outside to mark the
location of the two mounting holes
onto the boards . Drill two 3/16"
mounting holes, then separate the
boards and set the insulator aside .
STEP 12
Drill the main boards
The main eyelet board needs to be
centered between the grommet holes
circled in red above .
The right end of the board is 1/2" from
the side of the chassis . Position the
taped main board and insulator as
indicated by the dotted lines .
Mark the mounting holes as you did
with the bias boards . Drill two 3/16"
mounting holes through these boards
and set the insulator aside .
n
Don’t think of solder as glue . Good
mechanical connections make good
electrical connections . Solder’s job
is to finalize an already good joint,
not to hold the parts on the board .
So wrap the leads tightly for good
electrical contact before soldering .
n
Melt a small amount of solder onto
the tip of the iron (“tinning" the iron) .
Hold the tip against the joint for a few
seconds, until the connection reaches
soldering temperature .
Also tin component leads like multi-
strand wires to help the solder flow .
Tips for great soldering
!
n
Keep your soldering tip clean by
wiping it often on a damp sponge .
Keep it tinned by occasionally melting
a little solder onto it .
n
Feed solder to the connection not
to the iron . Keep the iron on the con-
nection for a second longer to allow
time for all of the flux to cook out of
the joint .
n
Don’t ever blow on the hot solder
or touch anything until the joint is
completely cool . A good solder joint
is shiny—a sign that it was left to cool
undisturbed .
n
Trim away the excess wires after the
joint has cooled .
n
Plan ahead so each joint is only
soldered once . Resoldered joints are
messy and more likely to fail .
n
Position the parts so their specs face
out so you can read them later . Many
builders also align resistor bands to
read in the same direction .
n
How much insulation to strip? With
plastic insulation, strip 3/8" from the
wire ends . Push-back wire works best
when you strip away about 1/4" of the
cloth wrap .