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Radio Shack Science Fair Goofy-Lite 28-130 Instruction Manual page 4

Electronic project

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12. ( ) Strip all insulation from a 2" piece of wire.
Connect one end to transformer T1 Pin 5 and solder.
Connect the other end to the positive (+) battery
terminal and solder.
COLOR BAND
CATHODE
13. ( )
Insert rectifier D1 as shown in the pictorial
diagram. Note the color band on the rectifier which
indicates the direction in which that the rectifier should
be installed.
Attach the Anode of rectifier D1 to
transformer T1 Pin 2 and solder.
14. ( ) Insert 4.7 Meg resistor R1 as shown in the
pictorial diagram. Connect one lead to the Cathode
lead of rectifier D1 and solder.
15. ( ) Insert 4.7 Meg resistors R2 through R5 as
shown in the pictorial diagram.
16. ( ) Remove all insulation from a 3" piece of wire.
Connect to 4.7 Meg resistors R1 through R5 as shown
and solder each resistor lead to the wire.
All construction up to this point is identical for operation
either as a sequential blinker or a random blinker. If
you wish to have your unit operate as a random blinker,
follow the steps below. If you wish to have your unit
operate as a sequential blinker, follow the steps and
the diagram on page 5.
17a. ( ) Insert an NE2-1 neon lamps as shown in the
pictorial diagram. Connect one lead to 2.7 Meg resistor
R1.
18a. ( ) Insert an NE2-2 neon lamps as shown in the
pictorial diagram. Connect one lead to 2.7 Meg resistor
R2.
19a. ( ) Insert an NE2-3 neon lamps as shown in the
pictorial diagram. Connect one lead to 2.7 Meg resistor
R3.
20a. ( ) Insert an NE2-4 neon lamps as shown in the
pictorial diagram. Connect one lead to 2.7 Meg resistor
R4.
21a. ( ) Insert an NE2-5 neon lamps as shown in the
pictorial diagram. Connect one lead to 2.7 Meg resistor
R5.
22a. ( ) Insert .22 MFD capacitor C1 as shown in the
pictorial diagram. Connect one lead to the junction of
ANODE
NE2-1 and R1 and solder.
23a. ( ) Insert .22 MFD capacitor C2 as shown in the
pictorial diagram. Connect one lead to the junction of
NE2-2 and R2 and solder.
24a. ( ) Insert .22 MFD capacitor C3 as shown in the
pictorial diagram. Connect one lead to the junction of
NE2-3 and R3 and solder.
25a. ( ) Insert .22 MFD capacitor C4 as shown in the
pictorial diagram. Connect one lead to the junction of
NE2-4 and R4 and solder.
26a. ( ) Insert .22 MFD capacitor C5 as shown in the
pictorial diagram. Connect one lead to the junction of
NE2-5 and R5 and solder.
27a. ( ) Remove 2-1/2" insulation from one end of a 7-
1/4" piece of wire. Remove 2-1/2" insulation from the
other end of the wire.
28a. ( ) Insert the wire into the perfboard as shown in
the pictorial diagram. Connect one end to transformer
T1 Pin 1 and solder. Connect the other end to NE2-1
through NE2-5, and C1 through C5, and solder all
leads.
Note: Clip all extra wires at the soldered points.
You have completed all connections, both wiring and
soldering. Carefully double check the work against the
pictorial diagram.

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