7794

The

5

The 7794 is a C band 5 watt CW magnetron. It is designed for AM modulated communications, telemetering and

up to

10

up to 10 watts are avgilable. In amplitude modulated systems one hundred percent modulation of a five watt

carrier is permitted. With

10

carrier is permitted. With 100% modulation incidental FM is less than 10 megacycles. The rugged light weight

4400 Mc. The integral magnets are enclosed in steel shells w

4400

4400 Mc. The integral magnets are enclosed in steel shells which serve to shield the magnetron from stray

Voltaga {(Note

6.3

Voltaga {(Note 1} . . .. .. ..o i ion v 6.3 Yolts

Current L . . . i e e e e

10

Current L . . . i e e e e 0.6 £t 10% Ampere

Warm-Up Time (Note

40

Warm-Up Time (Note 2) . . ... ... ... ... 40 Seconds

Operating Voltages ... ........ Special

337

Operating Voltages ... ........ Special 8-Pin [n-Line Plug %{O 337 MADE IN USA

Ambient Temperature . . . . ... o e ~

70

Ambient Temperature . . . . ... o e ~55°C to +70°C VVC\[III& I()USC

Shell Temperature

35

Shell Temperature . . ... .. ....... 35°C max. obove ambient : SER NO

Heotor Curront .. . v v vs o

0.66

Heotor Curront .. . v v vs o 0.54 0.60 0.66 Amperes The maximum ratings must not be exceeded if per-

Powar Qutput . . ... oo

5

Powar Qutput . . ... oo ... 0.5 4.5 5 Watts

Froquency

4400

Froquency . ... .. 0o aet 4200 »- 4400 Megacycles can be applied simultanecusly.

Pulling Figure for VSWR of

4

Pulling Figure for VSWR of 1.5 - - - - 4.0 Megacycles

Heator Voltoge (Note

7

Heator Voltoge (Note 1) . . ... ... 57 63 7.0 Yolts

Heater Currant. . . .. v . .. e e

0.66

Heater Currant. . . .. v . .. e e 0.54 0.60 0.66 Amperes

Poak Cothode Voltage . .. ...... ~

-500

Poak Cothode Voltage . .. ...... ~250 —450 -500 Volts tube if brought within strong A.C. field regions.

Pook Power . .« v vv v v v convas

100

Pook Power . .« v vv v v v convas 0.5 50 100 Watts mounting brackets. Magnets should be kept at least

Heater Current . .. v o v v e ot

0.66

Heater Current . .. v o v v e ot 0.54 0.60 0.66 Ampares Handling Precautions:

Cathade Center Veltoge . . ... ~

400

Cathade Center Veltoge . . ... ~300 -350 —400 Volts

Modulation Fraqueney . . . .. .. -+

10

Modulation Fraqueney . . . .. .. -+ 10% 10® Cycles/Sec.

Modulotion Amplitude (Note &) . - - - =

100

Modulotion Amplitude (Note &) . - - - = 100% out special precaution except that the output section

2: Cathode voltage and heater voltage can be applied at the

2

2: Cathode voltage and heater voltage can be applied at the center of its tuning range. Loosening the

full rating in less than

40

full rating in less than 40 seconds. either direction. An approximate tuning curve is

support. Non-magnetic clamps should be used to £

180

support. Non-magnetic clamps should be used to £ 2| 180 <

but pulse widths less than

2

but pulse widths less than 1.0 microseconds have 5 2|2 g0 A

6: The amplitude of modulation voltage is related to « 360

360

6: The amplitude of modulation voltage is related to « 360

between

230

between 230 volts and the operating center voltage CE-AtER?

is the amplitude needed for

100

is the amplitude needed for 100% sine wave modu-

settings to be maintained in systems where vibration watt, as shown in Figure

3

settings to be maintained in systems where vibration watt, as shown in Figure 3.

about —

5

about —5 Mc.

4o [~ probable with amplitude modulation. Higher or lower

4

4o [~ probable with amplitude modulation. Higher or lower

| |

656

| | 1344° 656"

Cathode Voltage

-450

Cathode Voltage . . . ... ... -250 -425 -450 Yalts formance characteristics are to be maintained. It

through

1

through 1 megohm of resistance. Tuning: