Section II. POWER SUPPLY PP-4151/FRC-93

TM 11-5820-554-12

Figure 7-5. PP -3 990/FRC -93 assembled to Collins KWM-2/2A.

Section II. POWER SUPPLY PP-4151/FRC-93

equipment. In the Collins KWM-2/2A, this function is

7-7. Description

provided whenever the transceiver OFF-ON-NB-CAL

(fig. 7-6).

switch is set to ON, NB, or CAL

Power Supply PP-4151/FRC-93 (Collins 516F-2)

7-8. Tabulated Data

provides all operating voltages for the Collins KWM-

Input requirements

115 or 230 volts, 50 to 400 Hz,

2/2A. It operates from a 115- or 230-volt, 50- 400-Hz

2 or 4 amperes. (Remove capacitor C1

power source to provide high voltage d.c., low voltage

when using a line frequency higher than

60Hz.)

d.c., variable d.c. bias, and an a.c. filament supply that

Output (nominal):

is connected to associated equipment by a 60-inch

Heater power

6.3 volts at 10.0 amperes.

Low voltage B

300 volts d.c. at 170 ma

length of cable and terminated in an 11-pin female

285 volts d.c. at 210 ma.

cable connector. This 11-pin female cable connector

mates with a male power receptacle located on the

High voltage B+

940 volts d.c. at 55 ma.

820 volts d.c. at 230 ma

Collins KWM-2/ 2A. As supplied, the PP -4 151/FRC-

Bias voltage

-55 to -88 volts, no current

93 is wired for 115-volt operation. It is equipped with a

requirement

Ambient temperature range

0 to +50 .

ventilated cabinet having four rubber feet for table

mounting. To apply power to the PP-4151/FRC-93,

two pins on the 11-pin female cable connector (P2-7

and (P2-7 are connected together in the external

7-9. Items Comprising Power Supply PP-41 51 /FRC-93

Dimensions

Weight

NSN

Item

Height

Depth

Width

(lb)

5820-00-034-4239

Power Supply PP-4151/FRC-93 (Collins

9 7/8

516F-2)

7-5