Figure 2-11.--Block diagram of a synchro signal amplifier.

Figure 2-11.--Block diagram of a synchro signal amplifier.

GENERAL DESCRIPTION

1 speed

36 speed

E- and F-type synchro signal amplifiers will be

discussed in this section of the chapter. The major

2 speed

difference between the two types is that the type E

2 and 36 speed

operates with 60-Hz supply and input. The type F

operates with 400-Hz supply and input signals. The

The E- and F-type synchro signal amplifiers consist

of subassemblies housed in a dripproof case. These

different supply and input frequencies require that the

cases are the same on both types of synchro signal

E- and F-type units use different synchro control trans-

amplifiers. The internal subassemblies are similar in

formers, servomotors, synchro capacitors, and

design. The only differences are the ones previously

amplifiers. Both types have provisions for four output

covered.

synchros: two for 60-Hz and two for 400-Hz trans-

The subassembly is easily accessible through a front

mission. Both types of synchro signal amplifiers are

access door in the case that can be opened by loosening

designed to provide for input and output transmission at

screws in the door. The door has hinges and supporting

any of the following combinations of speeds:

chains so it can be lowered and used as a service plat-

1 and 36 speed

form for the internal subassembly. An alarm switch, a

2-9