Troubleshooting guide

PR40—7
 3. Install C4, 100pF (marked 100 or 101).
 4. Install C5, .01uF (marked .01 or 103 or 10nF). Disc capacitor C5 is the bypass
capacitor for the DC voltage supply points on the PC board.
 5. Install Q1, 2SC2498 or 2SC2570A. Press Q1 into its respective location on the PC
board, which should be quite obvious by the placement of the previous parts. Orient the
flat side as shown on the PC board illustration. Press the transistor in place firmly with
finger pressure so that a minimum amount of wire leads are exposed above the PC board.
In soldering, do not be afraid to apply enough heat to make good, clean, solid connections.
 6. Install C3 and C6, 4.7 or 5pF (marked 4.7, 4.7K, 5, or 5K).
 7. Install C2, 2 or 2.2pF (marked 2 or 2.2). C2 and L1 form the tuned input filter.
 8. Install C1, 2 or 2.2pF (marked 2 or 2.2). C1 is the antenna input coupling capacitor.
 9. Install L1, the pre-wound 2-turn coil, into the two lower component holes. Bend over its
non-ground lead on the bottom of the board to form a jumper to the adjoining PC trace,
thus establishing a common connection between L1, C1, C2, and C3.