Description of Minor Components

TM 11-6780-225-12

e. Film Drop. A lightproof film drop is installed in the

air duct installation (fig. 1-1). An Adjustable fresh air

intake, and fresh air filter is located at the rear of the

escape door (fig. 5-2), which will accommodate up to one

space heater compartment to provide a constant flow of

4 x 5-inch film pack or one 70mm film cartridge.

fresh air from the outside. Spare fuses for the space

f. Fire Axe. A fire axe is located curbside in the

heater are mounted at the bottom of the space heater

center compartment (fig. 5-2).

compartment.

g. Fire Extinguisher. A fire extinguisher is installed

h. Print Processor. A print processor is located next

on the entrance door (fig. 5-2).

to each enlarger to permit rapid development of exposed

h. Flashight. A flashlight is installed on the entrance

stabilization type papers. Refer to TM 11-6740-287-12 for

door (fig. 5-2).

further description.

i. Fuel Supply Installation. A 5-gallon can and fuel

i. Processing Unit. A processing unit is located in

strainer are mounted rear roadside as shown in figure 1-

the forward compartment which provides water

13.

maintained at a preset temperature to the large

j. Equipment Protective Covers. Plastic covers are

compartment of the processing sink (fig. 5-2). The

provided for the air conditioners (fig. 5-1), enlargers, and

processing unit consists of a control unit, small tank

print processors.

holder and 9 small developing tanks, wash tank holder

k. Immersion Heater. The immersion heater (fig. 1-

with wash tank and 3 large developing tanks, a 6-inch

12) is a plug-in unit and is used as an auxiliary water

high standpipe, and a 12-inch high standpipe. Refer to

heater for mixing chemicals, and to melt snow in the sink

TM 11-6740-286-12 for further description.

to supply water to the water storage tank.

1-10. Description of Minor Components

l. Print Identification Equipment. A Ditto machine

a. Boarding Ladder. The boarding ladder (fig. 1-11)

and typewriter (fig. 5-2) and 8-1/2 x 11-inch pressure

is used to enter the darkroom when it is mounted on a

sensitive paper are provided for print identification.

truck as shown in figure 5-1.

m. Tool kit. The tool kit (fig. 1-14) is used for

b. Electric Installation Equipment.

The electric

organizational maintenance of the darkroom.

installation equipment (fig. 1-11) consists of two power

n. Wastebasket. A wastebasket is provided as

cables, adapters, and ground rod and strap.

This

shown in figure 1-9.

equipment is used to interconnect the darkroom with an

o. Water Installation Equipment. A 50-foot water

external power source.

hose with float is provided for connection of the darkroom

c. File Cabinet. A 3-drawer file cabinet is located in

to a fresh water supply (fig. 1-15). A 50-foot drain hose

the aft compartment in the print identification section.

also is provided to carry off the waste water from the

The drawers may be secured by turning two turnscrew

darkroom.

latches at the top of each drawer. The drawers will

p. Exhaust Pipe. An exhaust pipe (fig. 5-1) is

accommodate 9 1/2 x 11 3/4-inch file folders.

provided to prevent lethal gases from space heater

d. Film Processing Equipment. Film processing

operation from being drawn into the fresh air intakes.

equipment supplied with the darkroom is given below and

1-11. Additional Equipment And Materials Required

in figure 1-12.

But Not Supplied

Interval timer, 0 to 120 minutes, figure 1-2 and figure 1-6.

a. Power Source.

A generator set capable of

Apron, figure 1-2.

supplying a minimum of 12 kilowatts (kw), 3 phase,

Trouble safelight and filters, figure 1-2 and figure 1-6.

120/208 volts, 60 Hertz (Hz) is required to supply

Sponge, figure 1-2.

electrical power to the darkroom. A generator set capable

Sponge cloth, figure 1-2.

of a minimum output of 12 kw is not part of the darkroom

Shears, figure 1-3.

and must be requisitioned separately.

Thermometer, figure 1-3.

b. Expendable Supplies.

The following table

Mixing paddles, figure 1-5.

contains a list of expendable supplies denoting item

Straight 4 x 5-inch cut film hangers, figure 1-5.

names, Federal stock numbers (FSN), unit of supply, and

Stop timer, minutes and seconds to 1 hour, figure 1-8.

approximate number of units used per 90 days. Use this

Squeegee, figure 1-8.

list as a quick reference source for ordering depleted

Tongs, figure 1-8.

supplies.

Curved 4 x 5-inch cut film hangers, figure 1-8.

3-gallon photographic mixing pail, figure 1-9.

Change 5

1-12