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STEP-BY-STEP WIRING AND ASSEMBLY DIRECTIONS
Be sure to carefully follow all the directions. Do one step at a time and then check off the step in the box provided.
Before beginning, read over the enclosed page labeled "Construction Hints".
The step by step instructions indicate a soldering requirement; however, these connections can be made by firmly
twisting joining wires together. If the connection is secure the circuit will work for temporary or testing purposes. If you
wish a more permanent circuit, it is always best to secure these connections by soldering. Before soldering, read the
instructions in "Construction Hints".
1. ( ) Check the parts list to see that everything listed is
included. Check each step as you progress ().
2. ( ) Place the pictorial diagram near the perfboard
chassis so that the pictorial can be used as a guide for
exact placement of parts. The gray lines in the pictorial
diagram indicate components and wires which are
mounted under the circuit board. The solid lines indicate
components and wires mounted on top of the circuit
board.
3. ( ) Slightly enlarge the perfboard holes so that terminal
strips T1 through T4 fit snugly in the perfboard as shown
in Fig. 1 so that they face toward the back of the radio.
4. ( ) Slightly enlarge the holes for the tuning control
bracket to accommodate the 4-40 X 3/8" screws. Mount
the tuning control bracket as shown in the pictorial
diagram Fig 1 using the two screws and two 4-40 nuts.
Mount the 140pF variable capacitor C5 as shown below
using the short black screws. Thread the shaft extension
on the variable capacitor and tighten.
5. ( ) Mount potentiometer R2 orientating the lugs as
shown in the pictorial diagram Fig 1. Fasten in place with
the nut and washer provided.
6. ( ) Mount potentiometer R7 orientating the lugs as
shown in the pictorial diagram Fig 1. Fasten in place with
the nut and washer provided.
7. ( ) Mount the earphone jack J1 orientating the lugs as
shown in the pictorial diagram Fig 1. Fasten in place with
the nut provided.
8. ( ) Remove all of the insulation from a 3" piece of wire.
Connect one end to the Antenna Ground pin of the screw
terminal T2. Do not solder yet. Solder the other end to
the potentiometer R2 lug C and solder.
9. ( ) Remove 2" of insulation from one end of a 4-1/2"
piece of wire and ¼" insulation from the other end. Solder
the long stripped end to the 9V battery connector (+) pin
of terminal T1.
Connect the other end to the
potentiometer R7 lug C. Do not solder yet.
10. ( ) Insert the 2.2K resistor R6 into the perfboard and
bend the leads out slightly to keep the resistor in place.
11. ( ) Remove 1-1/2" of insulation from one end of a 3"
piece of wire and ¼" insulation from the other end. Solder
the bare short end to the 9V battery (-) pin of terminal T1.
Connect the long stripped end to the resistor R6 as shown
in Fig 1. Do not solder yet.
12. ( ) Bend down the earphone jack J1 terminal nearest
the wire from the 9V battery (-) terminal and solder as
shown in Fig 1.
13. ( ) Remove ¼" insulation from each end of a 4"
piece of wire. Solder one end to the Antenna Ground
terminal. Connect the other end to R6 as shown in Fig 1.
Do not solder yet.
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