Figure 4. Photographic equipment PH-549/TXC-1.

Figure 4. Photographic equipment PH-549/TXC-1.

of the received pictures are to be made

Sets AN/TXC-1B, -1C, and -1D, and also in

w i t h a hectograph pad. This is a

Facsimile Set AN/TXC-1A when modified accord-

ing to MWO SIG 11-375B-(1), Modification of

specially prepared paper containing a

F a c s i m i l e Set AN/TXC-1A to Provide an

dye coating with a high-resistance outer

External Loudspeaker (par. 11).

coating that is burned by the spark from

the transceiver stylus. The paper fur-

Note. Facsimile Set AN/TXC-1 contains no talk-back

nished is 12 inches by 1811/16 inches in

circuit. MWO SIG 11-2258-1, Modification of Facsimile

Sets AN/TXC-1 to Provide an Audible Signaling Device,

size. Two packages, each containing

gives instructions for connecting a jack to add a loud-

250 sheets, are furnished.

speaker to Facsimile Set AN/TXC-1. The tones that

precede a facsimile transmission will then be audible to

9. Running Spares

the receiving operator. This external speaker is of the

Running spares are supplied with Facsimile Set

permanent magnetic type, 4 inches in diameter, with a

AN/TXC-1(*) and are packed in the crate that

250-ohm output transformer to match the impedance of

contains the component in which they are used.

the transceiver talk-back circuit. The speaker and trans-

Spares are supplied for all normally expendable

former are contained within a steel box which is 45/8 inches

high, 45/8 inches wide, and 2 inches deep. This box is

items such as tubes, pilot lamps, and fuses. The

fitted with a mounting clamp.

following is a list of the items supplied:

h. Recording Paper (fig. 5). Two special types

1 tube, type 1B46

of direct recording paper are furnished for use with

1 tube, type 1B47

Facsimile Transceiver TT-1(*)/TXC-1.

1 tube, type 6AC5GT/G

(1) Teledeltos paper or Timefax NDA is used

3 tubes, type 7C5

in direct recording. They are dry papers

1 tube, type 7C7

with dark undercoating and light top

3 tubes, type 7L7

coating. The coating is burned off by a

2 tubes, type 7N7

spark from the transceiver stylus during

1 tube, type 7S7

the direct recording operation. The

1 tube, type 5Z3

paper furnished is 12 inches by 1811/16

1 tube, type 884

inches in size. Four packages, each con-

2 tubes, type RMA R1130B

taining 250 sheets of Teledeltos grade H,

2 tubes, type 1635

or Timefax NDA, are furnished. This

1 tube, type 1645

paper is nonduplicating.

4 tubes, type 5651

(2) Timefax A paper is used in the direct

1 tube, type 5652

recording process when multiple copies

1 tube, type 5879