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1 Section
Porogroph 3 q (18)
Figure l-26. Volume Level Indicotor, AN Type
T5-629/U, Fronl View
(18) VOLUME LEVEL INDICATOR AN TYPE
T5-629 /V ( Figure 1-26).-This equipment is intended
to measure the relative volume of audio signals.
For a complete description of the physical properties
and operation of this equiprnent, refer to the applicable
instruction book. This component is Government
furnished, and is not included in the contractor's
shipment of equipment.
(19) FREQUENCY METER NAVY MODEL
LM-lSa ( Figure 1-27 ) .-Frequency Meter Navy
Motel LM-15a is substituted for the Model LR-l Frequency
Nleter in the Typ" C Signal Distribution Unit.
The Frequencv Meter Navy N{odel LM-15 is crystal
calibrated to rneasure frequencies from L25 - 20,000
KCS. It consists of a single unit containing a heterodyne
frequerlcv meter, a rectifier power trnit, and the
necessary mechanical parts. It operates from a I00
130 \/, 50-60 cycle power source and recluires 28 watts
for operation. hr order to mount the meter in the relay
rack, it is fitted with a rnodification Kit Navy Typ"
RL-10624. For rnore cornplete information, refer to
NavShips 900,27 4. This cornponent is Covenrtnent
furnished, and is not included in the c