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021402
6 Vocal Zapper
Install the integrated circuit. Note that the orientation of the IC is keyed by a
notch at one end of the case which aligns with the semicircular key on the
designator printed on the circuit board. Use particular care when installing this
part, like any other semiconductor it is heat sensitive
and should not be exposed to extraordinarily high
soldering temperatures. Make sure that the
orientation is correct before soldering, Once they
are in place they are difficult to remove.
DESIGNATION
TYPE NO.
( ) IC1
5532 Dual Low Noise OpAmp
In the following steps wires will be soldered to the circuit board which will, in
later steps, connect to the front panel switches and jack. At each step, prepare
the wire by cutting it to the specified
length and stripping 1/4 inch of
insulation from each end. "Tin" each
end by twisting the exposed strands
tightly together and melting a small
amount of solder into the wire to hold
the strands together.
Using the wire provided, make the following connections to the circuit board.
Use different colored wire for connections to point "M" and "SG" so the origin
can be easily identified after the wires are twisted together in a later step.
PC POINT
WIRE LENGTH
PC POINT
WIRE LENGTH
( ) "M"
4"
( ) "C"
2"
( ) "SG"
4"
( ) "D"
2"
( ) "A"
2"
( ) "E"
2"
( ) "B"
2"
( ) "G"
4"
( ) Solder the black lead from one of the battery clips to the hole marked "V-" on
the circuit board.
( ) Solder the red lead from the other battery clip to the hole marked "V+" on the
circuit board. The remaining leads from the clips will be connected to the
switch in a later step.
Temporarily set the circuit board aside and mount the controls to the panel as
shown in Fig 2.
( ) Using the nuts provided with them, mount DPDT toggle switches S1 and S2
and the Microphone input jack J5 to the front panel. Do not use any washers
supplied with the switches.
pin 1