6
•
D1 varactor diode 1SV101
•
R1 4.7 kΩ (yellow, violet, red)
•
R2 220 kΩ (red, red, yellow)
•
R3 1 kΩ (brown, black, red)
•
R5 330 kΩ (orange, orange, yellow)
•
R6 33 Ω (orange, orange, black)
•
C15 electrolytic capacitor 100 µF
•
C17 100 µF ceramic (104)
Assembly of the control elements
The radio has two rotary controls – one for frequency and one
for volume. The three-port volume controller is equipped ad-
ditionally with the two-port on/off switch. If you turn the axis
all the way to the left, the switch opens. Insert the volume con-
troller into the left mounting hole. A small tab secures correct
insertion. Fix the controller with the ring nut and do not forget
the washer.
The second potentiometer with 22 k
Ω is used for frequency
tuning and is mounted on the right. The connections of both
potentiometers should face inwards so that the board can be in-
stalled between them later. Then screw both rotary knobs onto
the axes so that the end stops are aligned with the printed scales.
To Next Page
Loading...