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How to make a fully shielded connection in shielded audio cable
Needed tools and supplies.
Soldering iron -- 30 watt with
fine tip
Solder -- rosin core,
small diameter (.032")
X-Acto knife or similar to strip
insulation and cut tape
Straight pin or similar to
separate braided shield wires
Electrical tape --
I think that 3M
Scotch Super 33 is the best
Copper tape -- available at most
craft stores in the stained glass department
Heat shrink tubing -- electrical
tape will work just fine, but the heat shrink looks better
Heat source to shrink the heat
shrink tubing -- a cigarette lighter works nicely
Strip the outer
jacket/insulation back about 5/8".
Be careful not to damage the
shield wires.
If using braided shield cable,
use a straight pin or similar tool to separate the shield wires for about
1/2".
Be careful not to damage the
wires.
Twist the shield wires and fold them back along the cable.
Strip the center conductor back about 3/16".
If using heat shrink tubing to insulate this connection, now is the
time to slide the tubing over one of the cables.
Join the center conductors with solder.
Insulate the soldered connection using a small strip of
good quality electrical tape or apply heat to shrink the heat shrink tubing
if you use that form of insulation.
Wrap the insulated solder connection and the twisted/folded shield wires
with copper tape and solder the shield wires to the copper tape on both
sides of the copper tape.
Slide the heat shrink tubing over the completed connection and apply
heat as needed to shrink the tubing and insulate the cable.
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