2-34 A-13. A shunt peaking coil for Q2. A-14. A decoupling capacitor for the effects of R2. A-15. A part of the low-frequency compensation network for Q1. A-16. A series peaking coil for Q1. A-17. A swamping resistor for L2. A-18. L1, L2, and R5. A-19. R9 and C5. A-20. The gain increases. A-21. The gain decreases. A-22. To provide maximum impedance at the desired frequency. A-23. Yes. A-24. By changing the value. A-25. Transformer coupling. A-26. It uses fewer components than capacitive coupling and can provide an increase in gain. A-27. A step-down transformer. A-28. A too-narrow bandpass. A-29. By using an optimumly-coupled transformer. A-30. Low gain at the center frequency. A-31. A swamping resistor in parallel with the tuned circuit. A-32. RF transformers are used and the transistor is neutralized. A-33. Degenerative or negative. A-34. By neutralization such as the use of a capacitor to provide regenerative (positive) feedback. A-35. C2 and the secondary of T1. A-36. R1 provides the proper bias to the base of Q1 from V_BB . A-37. R2 provides the proper bias to the emitter of Q1. A-38. The output would decrease. (C4 decouples R2 preventing degenerative feedback from R2.) A-39. C5 and the primary of T2. A-40. Four.