Electronics (Mike Jaroch)

In a gyro, an axis through the center of gravity and mutually perpendicular to both the X (spin) and Y axes [15].

A PN-junction diode designed to operate in the reverse-bias breakdown region [7].

A reverse breakdown effect in diodes in which breakdown occurs at reverse voltages below 5 volts. The presence of a high energy field at the junction of a semiconductor produces the breakdown [7].

The process of adjusting a synchro to its electrical zero position [15].

The area where the satellite can be seen by both the up- and down-link earth terminals [17].