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GENTIIAI
DESCT{IPT!ON
NAVSHIPS
.shielcl cover, soc:ru'ed by si: 'rng clips, fits over the terrninal
board of the K"y Cornlartment.
(b) AF CHANNEL SELECTOR SWITCH,
NAVf TYPE CSM-24L259 (f i,gure 1-19).-The AF
Channel Selector Switch is of non-shorting, nongrounding
corrstruction and contains two sections, one
for each side of the circuit. It consists of two synthane
l"'afers with silver plated contacts. It is continuously
rotatable to arly of the 60 positions by the knob control.
Connections to the stationary contacts of the
switch are rnade from the Audio Selector Terminal
Board, rvhich contains 60 nurnbered pairs of terminals
and trvo pairs of ternrintrls marked A and B. The cornrnolr
clr rotor terrninals of the .switch are connected to
the A terr nirral.s. The B terminals are provided for
91o47
Figure l-18. Key
Pqnel
Section 1
Porogroph3q(13)(q)
Com po rlment, Pq rt
AN Type SA-135/G
of Switch
Figure f -19. AF Chqnnel Selector Switch, Novy Type CSM-241259
conrlecting the DPST toggle switch (5-1002) in series
with the cornrnon switch lead. The terrninals or] the
Audio Selector Terminal Board are intended for corlnectiou
in parallel rvith the ]oad circuits at the Receiver
Output Tc'rrninal Board. The AF Selector
Switch permits rapid selection of channels fclr monitorin5,
t'sting, etc, without extensive patching and
r,vithout serious internrption of colnmunications.
(14) SPEAKER ASSEMBLY AN Typtr LS_139/c
( F'igure 1 -20 ).-Speaker Assernbly AN Typ" LS-
L39,/ C is i. size E panel on which are rnounted two
Nar.y Typ" CPS-4grBr4 permanent magnet speakers
with all attenttator for euch. Output transfonners are
r'not,ilrterl oI] the sllettker frarrues for irnpedance mtrtch-
Figure | -20. Speoker Assembly AN Type tS- | 39 / G,
Front View
ORIGINAL
RESTRICTED
1-11