Section I. GENERAL
Form and Records
a. Reports of Maintenance and Unsatisfactory
Use equipment forms and records in
Microphone 19LB-87 (fig. 1-1) and covers equipment
installation, operation, functioning, and organizational
accordance with instructions given in TM 38-750.
and direct support maintenance. It includes cleaning
b. Report of Packaging and Handling
and inspection of the equipment, and replacement of
Deficiencies. Fill out and forward DD Form 6 (Report of
parts available to organizational and direct support
Packaging and Handling Deficiencies) as prescribed in
AR 700-58 (Army), NAVSUP Pub 378 (Navy), AFR 71-4
b. The basic issue items list appears in
(Air Force), and MCO P4030.29 (Marine Corps).
c. Discrepancy in Shipment Report (DISREP)
appendix C, and the repair parts and special tool lists
(SF 361). Fill out and forward Discrepancy in Shipment
Report (DISREP) (SF 361) as prescribed in AR 5538
(Army), NAVSUP Pub 459 (Navy), AFM 75-34 (Air
Force), and MCO P4610.19 (Marine Corps).
Appendixes B, C, and D are current
Improvements. The reporting of errors, omissions, and
as of January 1970.
recommendations for improving this publication by the
individual user is encouraged. Reports should be
Indexes of Publications
submitted on DA Form 2028 (Recommended Changes
a. DA Pam 310-4. Refer to the latest issue of
to Publications) and forwarded direct to Commanding
DA Pam 310-4 to determine whether there are new
General, U.S. Army Electronics Command, ATTN:
editions, changes, or additional publications pertaining
AMSEL-ME-NMP-EM, Fort Monmouth, N. J., 07703.
to the equipment.
b. DA Pam 310-7. Refer to DA Pam 310-7 to
determine whether there are modification work orders
(MWO's) pertaining to the equipment.
Section II. DESCRIPTION AND DATA
1-4. Purpose and Use.
1-5. Technical Characteristics
The 19LB-87 is a lightweight headset-microphone
designed to provide intelligible communication in a high-
H-136/AIC earphone ........... Moving coil, dynamic.
noise environment. The 19LB-87 is used with classified
M-87/AIC microphone ......... Moving coil, dynamic,
electronic communication equipment under control of
the Army Security Agency (ASA). Information regarding
specific application of this headset-microphone is
H-136/AIC earphone ........... 200 to 6,000 Hz.
available from the ASA on a need-to-know basis.
M-87/AIC microphone ......... 200 to 6,000 Hz.