Technical Characteristics

TM 11-6730-235-12

training, briefing, and entertaining troops. It projects

NSN

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Nomenclature, part No.

relatively small text and illustrated material for

and mfg code

simultaneous viewing by all members of a class or

tify manufacturer, dis-

lecture audience. Projection materials for the projector

tributor, or Govern-

can be prepared before, or as part of, a lecture

ment agency, etc.

Projector, Still Picture, PH-63

demonstration. Overlay techniques, in which one or

6730-00-493-2984

more transparencies are placed over another

PFP:80-00, 31535,

transparency and progressively removed, can be used

consisting of:

with the projector to illustrate stages of an operation.

1 Spool, Attachment, Roll:

Also, opaque masks can be placed over portions of the

65-82-1, 31535

transparency being projected to provide partial or

progressive presentation of material.

1-6.2.

Expendable Consumable Items

1-5.

Technical Characteristics

Expendable consumable items required for operation

appear in table 1-1.

Transparency type

Overhead transparencies in pre-

accommodated.

pared mounts of up to 10 by

10 in. Acetate rolls 100 R by

1-7.

Description and Equipment

10/4 in.

(fig. 1-1)

Operation temperature

From -25F (32C)

range.

to 150'F (661C .

a. Description of Major Components.

Lens data ........................... Two wide-angle,14 inch focal

The projector component of the

(1) Projector.

length f/3.5 lenses.

projector set is an overhead projector consisting of five

Lamp data.......................... Quartz, bromine-halogen

assemblies: a lens head assembly, arm and post

cycle, single-ended, 2200-

assembly, top plate assembly, case assembly, and a

lumen, projection lamp.

lamp housing assembly. The lens head assembly

Ventilation........................... Forced air

contains a front lens, a bottom lens, and an internally

Image elevation

located mirror. The assembly pivots as a unit around a

angle ............................... Over 30%

support bracket that connects the assembly to the arm

Projection range ................ 4 to 25 ft.

and post assembly. The focus arm of the arm and post

Power input ........................ 105 to 120 volts,

assembly is supported by a holster that can be moved up

60 Hz.

and down on the post. Movement of the holster is

Power consumption .......... 600 watts

accomplished by turning two focus adjust knobs. These

From 28 to 28 in. (for

Projected image screen

knobs turn a pinion gear in the holster that meshes with

area.....................................

foot projection distance)

a toothed rack on the post. Upper and lower stops on

to 175 x 175 in. (for 25-

the post limit the movement of the holster. The top plate

foot projection distance).

assembly is hinged to the case assembly. It is secured

in the closed position by a spring lock button on the case

1-6.

Components and Dimensions

assembly. The top plate assembly is supported and

locked in the open position by an interlock arm

Dimensions (in.)

connected to the case assembly.

The top plate

Item

Height

Width

Depth Weight

assembly contains a stage glass and fresnal lens for the

(lb)

projector. The fresnel lens is held by a fresnel lens

Projector

13 5/8 15 5/8 21

holder that is secured to the top plate by a spring latch

Roll attachment (2)

2 1/8

3 1/2

during overhead projection. The fresnel lens is released

Adapter

1 1/8

7/8

1/32

for cleaning or replacement only. The case assembly

1-6.1.

Items Comprising and Operable

houses an interlock switch that is actuated by the

Equipment

interlock arm, a blower motor, a thermal switch, a

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Nomenclature, part No.

convenience outlet, and a wiring harness as shown in

and mfg code

figure 1-2. The case assembly also houses the lamp

NOTE

housing assembly. The lamp housing assembly consists

The part number is fol-

of a projection lamp and reflector.

lowed by the applicable

5-digit Federal supply

(FSCW identified in SB

70842 and used to iden-

Change 2 1-2