ANSWERS TO QUESTIONS Q1. THROUGH Q76.

1-77 A-26. The voltages are equal and oppose each other. A-27. Signal. A-28. 1 and S3. A-29. The rotor leads on either the transmitter or the receiver are reversed. A-30. Differential synchros can handle more signals than regular synchros and also perform addition and subtraction functions. A-31. The TDX and the TDR. A-32. Their application: a TDX has one electrical and one mechanical input with an electrical output. A-33. The way the differential synchro is connected in a system is the deciding factor on whether the unit adds or subtracts its inputs. A-34. When the TDX rotor is on 0º. A-35. 240º. A-36. 80º. A-37. The S1 and S3 leads are reversed between the TX and the TDX, and the R1 and R3 leads are reversed between the TDX rotor and the TR. A-38. The R1 and R3 leads between the TDR rotor and the TX to which it is connected. A-39. Clockwise. A-40. A control synchro. A-41. CX, CT, and CDX. A-42. The CX and CDX have higher impedance windings. A-43. The rotor is specially wound, it is never connected to an ac supply, and its output is always applied to a high-impedance load. A-44. They are perpendicular to each other. A-45. The voltage is maximum and in phase with the ac excitation voltage to the CX. A-46. Error signal. A-47. When the CX and CT rotors are in correspondence. A-48. To improve overall synchro system accuracy by reducing stator currents. A-49. TDXs, CDXs, and Cts. A-50. Magnetizing current. A-51. They are delta-connected across the stator windings.