SECTION I. INTRODUCTION AND GENERAL INFORMATION

TO 33D2-10-10-41

TM 55-6695-217-13

SECTION I

INTRODUCTION AND GENERAL INFORMATION

microphones

used

with

the

A1C-10

1-1. INTRODUCTION. This technical manual contains

Intercommunication Set or similar systems. The tester

operating and maintenance instructions and an

also provides regulated power for the EEU-2P flash

illustrated parts breakdown for the Oxygen Mask,

protection goggles.

Headset, Microphone and Flash Goggles Tester, Type

MQ-1A, National Stock Number 6695-01-0970441. The

1-3. DESCRIPTION. (See figure 1-1.) The tester is -

MQ-1A Tester is manufactured by Winding Specialists

contained in a portable case that requires only two

Co., Inc., Wichita, KS under part number 1854.

external connections: 1) connection to a supply of

breathing oxygen adjusted to 450 psi and 2) connection

1-2. PURPOSE.

The MQ-1A Tester (hereinafter

of the power cord to 115 volt, 60 Hz electrical power.

referred to as tester) is a preflight tester for the

All operating controls and instrumentation are located on

MS22001 oxygen mask and similar oxygen masks and

the control panel and are accessible with the cover

the P series helmet to discover evidence of leakage or

opened. Sufficient space Is provided between the

other malfunctions. It duplicates the oxygen, flash

closed cover and the control panel to permit storage of

goggles and communications system installed on

connecting cables, power cord and oxygen hose when

aircraft, except that this unit can be made available in

not in use. Additional physical characteristics and

personnel areas. The tester performs "talk out" checks

specifications are provided in subsequent paragraphs

of headsets and mask microphones, and of headset

and Table 1-1.

Table 1-1. Leading Particulars.

Input voltage

115 VAC, 60 HZ

Oxygen supply

450 PSI

Dimensions

14 in. long x 8 3/4 In. wide x 10 in. high

Weight

15 pounds

Figure 1-1. Oxygen Mask, Headset, Microphone and Flash Goggles Tester MQ-1A

1-1