[ ] R-74, 100 ohms (brown-black-brown)
[ ] C-73, 100 mfd Observe Polarity
[ ] R-93, 220 ohms (red-red-brown)
[ ] C-77, 10 mfd Observe Polarity
[ ] C-75, 100 mfd Observe Polarity
[ ] Solder
[ ] Clip Excess Lead Length
[ ] Inspect Solder Connections
TEST: You can test the microphone amplifier by using an audio amplifier to monitor the negative side
of C-77 while you key your microphone and talk into it.
BFO Mixer Assembly
[ ] T-6, 8:8:8 turns #28 trifilar on FT37-43 (black) core. This is three wires, each 6 inches long.
Twist them together for 8 twists per inch
and wind this on the core.
Illustration 5: BFO Mixer Section (N7VE Photo)