TM
11-5820-921-40-1
1-46. Specific initial checkout and adjustment procedures for the power amplifier depend on the system
with which the power amplifier is used. If the power amplifier is used with radio set AN/MRC-138
(AN/GRC-l 93 components rack-mounted in an M151 A2, jeep vehicle), refer to the System Manual, TM-
TM 11-5820-924-12. O t h e r w i s e , refer to the applicable system technical data for
t h e s e procedures.
1-47. In general, the following inspections should be performed prior to operating the equipment:
1. Make sure that the power amplifier cooling intakes and outlets are free of any obstructions.
2. Make sure all electrical and ground cable connections are tight and secure and free of dirt and other
obstructions.
3. Make sure the applicable operational technical data is close at hand.
1-48. RELOCATION PROCEDURES
1-49. If the power amplifier is to be relocated, turn off all power; then disconnect all cables. Place plastic
caps over the power amplifier and cable connectors. Cover the power amplifier air intakes and outlets.
Remove the power amplifier from the mounting surface and move it to the new location.
1-50. PREPARATION FOR LIMITED STORAGE AND RESHIPMENT
1-51. The procedure for preparation for limited storage and/or reshipment of the power amplifier is
essentially the same as that described in paragraph 1-47 plus the following:
1. Repack the power amplifier in its original shipping crate (inner box, insulation, and outer crating).
2. Ensure that the origin and destination data, as required by local authorities and directives, are
clearly marked as required.
SECTION III
DEMOLITION TO PREVENT ENEMY USE
1-52. GENERAL
1-53. When capture or abandonment of the power amplifier to an enemy is imminent, the responsible unit
commander must make the decision to either destroy the equipment or to render it inoperative. Based on
this decision, orders are issued which cover the desired extent of destruction.
Power Amplifier Tubes lA14V1 and 1Al4V2 (Y-621 B) contain BERYLLIUM
OXIDE (BeO) CERAMICS. The dust or fumes from BERYLLIUM OXIDE
CERAMICS are HIGHLY TOXIC; breathing them can result in serious injury
or DEATH.
