Telex installation instructions Telex, Parts List and Wiring Diagrams, Model PH-81 Headset

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Telex

Parts List and Wiring Diagrams

Model PH-81 Headset

Model No.

Catalog No.

Reciever Type &

Microphone Type &

 

 

Impedance (Ohms)

Impedance (Ohms)

 

 

 

 

PH-81

64438-004

Magnetic, 275

Carbon, 20

 

 

 

 

Item No.

Description

Qty.

Part No.

 

 

 

 

1

Cushion

1

64442-000

 

 

 

 

2

Glider

1

64440-000

 

 

 

 

3

Headband Assy

1

61162-044

 

 

 

 

4

Slider Tip

2

61166-005

 

 

 

 

5

Headband Spacer

1

63709-000

 

 

 

 

7

Earcup-Yoke-Slider Assy 1

1

70398-032

8

Boom Arm-Ball Half-Cord Kit 2

1

70398-004

9

Strain Relief

1

63465-005

 

 

 

 

10

Coil Cord Assy, Unterminated

1

19652-033

 

 

 

 

18

Terminal

1

54462-001

 

 

 

 

19

Screw, No. 6-20 x 1/4

1

51856-008

 

 

 

 

20

Adapter Cap

1

61565-012

 

 

 

 

21

Mic Element-Housing Assembly

1

70398-005

 

 

 

 

Item No.

Description

Qty.

Part No.

 

 

 

 

22

Retainer

1

02852-000

 

 

 

 

23

Housing, Mic Bottom

1

61614-011

 

 

 

 

24

Ball Half 3

1

63451-002

25

Ball Joint Spring

1

63453-000

 

 

 

 

26

Hex Spacer

2

57907-000

 

 

 

 

27

Foam Liner

1

63763-000

 

 

 

 

28

Foam-Rcvr Element Boot Assy

1

70398-020

 

 

 

 

29

Screw, No. 4-40 x 1/4

2

51856-024

 

 

 

 

30

Earplate

1

63751-000

 

 

 

 

31

Screw, No. 4-40 x 1/4

2

51845-038

 

 

 

 

32

Ear Cushion

1

63444-000

 

 

 

 

33

Ear Cushion Cover

1

35772-000

 

 

 

 

 

 

 

 

1One (1) slider tip (Item No. 4) is supplied with this part. Slider tip should be glued to slider using an epoxy adhesive.

2Kit contains one (1) boom arm, one (1) boom cord, and one (1) ball half preassembled with installation instructions.

3Quantity two (2) required per Headset, but one (1) is supplied as part of boom arm-ball half-cord kit (Item No. 8).

61171, AZ

64438, AE

64439, F

70398, A

®

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Contents Telex Parts List and Wiring DiagramsModel PH-81 Headset Wiring Diagram
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PH-81 specifications

The Telex PH-81 is a high-performance headset designed primarily for use in professional environments such as aviation, broadcasting, and other communications-intensive applications. With an emphasis on comfort, durability, and exceptional sound quality, the PH-81 has established itself as a trusted choice among professionals who require reliable audio performance.

One of the standout features of the Telex PH-81 is its advanced noise-canceling technology. This headset employs dual microphones positioned strategically to filter out ambient noise, allowing for clear communication even in loud environments. This is particularly beneficial in aviation, where background noise can be disruptive and potentially hazardous.

The PH-81 is equipped with large, cushioned ear pads that provide not only comfort during extended use but also effective passive noise isolation. The design ensures a snug fit, which helps to block out external sounds, thereby enhancing the overall audio experience. The lightweight construction of the headset minimizes fatigue, making it an ideal choice for long-duration use.

In terms of audio quality, the Telex PH-81 delivers a wide frequency response, ensuring that both high and low sounds are accurately reproduced. This clarity in sound reproduction is crucial for communication in professional settings, where missing a word or phrase can lead to misunderstandings.

Another notable characteristic of the PH-81 is its flexible boom microphone. This feature allows users to position the microphone exactly where they need it for optimal voice capture. The microphone’s windscreen further reduces the chances of wind interference during outdoor use.

Durability is another strong suit of the Telex PH-81. Constructed with high-quality materials, the headset can withstand the rigors of daily use in demanding environments. Additionally, the detachable cable enhances convenience, allowing for easy replacement if damaged.

The Telex PH-81 is compatible with a variety of communications systems, making it versatile for multiple applications. Whether used in cockpit environments or production studios, its adaptability makes it a preferred choice for professionals across various fields.

In summary, the Telex PH-81 stands out for its exceptional noise-cancelation features, comfort-oriented design, high-quality audio performance, and durability. These characteristics make it an essential tool for professionals requiring reliable communication in noisy environments. Whether in aviation or broadcasting, the Telex PH-81 continues to set a standard in professional headsets.