14. ( ) Remove 1-1/2” insulation from one end of a 2-
1/2” piece of wire and ¼” insulation from the other end.
Insert the long bare end of the wire into the perfboard
near capacitor C6 as shown in Fig 1 and solder the short
bare end to the middle lead of the variable capacitor C5.
Solder the other end to both pins of the coil terminal block
T3 as shown in Fig 1.
15. ( ) Remove 2-3/4” insulation from one end of a 4”
piece of wire and ¼” insulation from the other end. Insert
the long bare end of the wire into the perfboard above and
to the right of capacitor C6 as shown in Fig 1 and solder
the short bare end to the top lead of the variable capacitor
C5. Solder the other end to both pins of the coil terminal
block T4 as shown in Fig 1.
16. ( ) Insert the 2.7K resistor R12 into the perfboard.
Solder one end to the bare wire from the 9V battery (+)
terminal as shown in Fig 1.
17. ( ) Insert the 10uF electrolytic capacitor C11 into the
perfboard so that the POSITIVE capacitor lead is closest
to the bare wire from the 9V battery (+) terminal as shown
in Fig 1 and solder. IMPORTANT: Most electrolytic
capacitors only mark the NEGATIVE lead with a band or
arrow. The positive lead usually does not have a marking.
Make sure you solder the correct lead in this step.
18. ( ) Insert the Mylar capacitor C9 into the perfboard.
Solder one end to the bare wire from the 9V battery (+)
terminal as shown in Fig 1. Mylar capacitors do not have
a polarity so it does not matter which direction the
capacitor is inserted into the perfboard.
19. ( ) Insert the 12K resistor R8 into the perfboard.
Solder one end to the bare wire from the 9V battery (+)
terminal as shown in Fig 1.
20. ( ) Insert the 10K resistor R11 into the perfboard.
Solder one end to the bare wire from the 9V battery (-)
terminal as shown in Fig 1. Solder the other end to the
earphone jack J1 as shown in Fig 1.
21. ( ) Insert the 47K resistor R10 into the perfboard.
Solder one end to the bare wire from the 9V battery (-)
terminal as shown in Fig 1.
22. ( ) Insert the 22K resistor R9 into the perfboard.
Solder one end to the 47K resistor R10 as shown in Fig 1.
23. ( ) Insert the 47uF electrolytic capacitor C7 into the
perfboard so that the NEGATIVE end is closest to the
2.2K resistor R6. Connect the POSITIVE lead of C7 to
resistor R6 as shown in Fig 1 and solder all leads and
wires together.
24. ( ) Bend the leads of PNP transistor Q3 as shown
and insert into the perfboard.
Make sure the flat side of the transistor faces toward the
front of the radio as shown in Fig 1. Solder the emitter
lead to resistor R12 and capacitor C11. Solder the
collector lead to resistor R11. Solder the base lead to
capacitor C9.
25. ( ) Bend the leads of PNP transistor Q2 as shown in
step 24 and insert into the perfboard. Make sure the flat
side of the transistor faces toward the front of the radio as
shown in Fig 1. Solder the emitter lead to the bare wire
from the 9V battery (+) terminal using a short piece of
bare wire. Solder the collector lead to resistors R9 and
R10, and capacitor C9 as indicated in Fig 1. Solder the
base lead to R8 and R9 as indicated in Fig 1.
26. ( ) Strip ¼” of insulation from each end of a 1” piece
of wire. Solder one end to resistor R9 and the other end
to potentiometer R7 lug A.
27. ( ) Bend down lug B of potentiometer R7 until it is
flat against the perfboard.
28. ( ) Insert the .047uF MLC capacitor C8 into the
perfboard as close as possible to potentiometer R7 lug B
and solder C8 to lug B as shown in Fig 1. MLC capacitors
do not have a polarity so it does not matter which direction
the capacitor is inserted into the perfboard.
29. ( ) Strip ¼” of insulation from each end of a 1” piece
of wire. Solder one end to the positive lead of electrolytic
capacitor C7. Connect the other end to potentiometer R7
lug C. Do not solder yet.
30. ( ) Insert the 33K resistor R5 into the perfboard and
bend the leads out slightly to keep the resistor in place.
