Data set 01
1971 English Electric Valve
Published operating points and test conditions from this source.
Magnetron
Other
Heater current at 6.3V
5 A
Heater current at 6.3V . e . . . . . . . . . 05 A
Cathode heating time (mlnlmum) (see note2)
2 min
Cathode heating time (mlnlmum) (see note2) ... 2 min
Heater voltage
7
Heater voltage . . . P <N 4 7.0 \
Heater starting current (peak)
3 A
Heater starting current (peak) e 3.0 A
Anode voltage {peak)
6 kV
Anode voltage {peak) . . . . . . . . - 6.0 kV
Anodecurrent(peak)
5.5 A
Anodecurrent(peak) . . . . . . . . 35 5.5 A
Rate of rise of voltage pulse (at 4.5A peak
4.5
Rate of rise of voltage pulse (at 4.5A peak
anode current) (see note6)
75 kV
anode current) (see note6) . . . . . . — 75 kV/us
Heater voltage
5.4 V
Heater voltage 5.4 V
Anode current (peak)
45 A
Anode current (peak) 45 A
Pulse length
1
Pulse length . 1.0 uS
Pulse repetition rate
1000 s
Pulse repetition rate 1000 p.p.s.
Anode voltage (peak)
5.5 kV
Anode voltage (peak) 5.5 kV
Output power {peak)
9 kW
Output power {peak) 9.0 kW
Output power {mean)
9 W
Output power {mean) 9.0 W
Heater voltage (for test)
6.3
Heater voltage (for test) 4.5 6.3 \
Anode current {mean)
45 mA
Anode current {mean) 9.0 45 mA
Anode voltage {peak)
5.7 kV
Anode voltage {peak) . . . . 53 5.7 - - kV
R.F. bandwidth (see note@)
1.25 MHz
R.F. bandwidth (see note@) . . -— 2.5 - 1.25 MHz
Output power (mean)
125 W
Output power (mean) 125 - W min
(anode current 7.5mA mean)
3 MHz
(anode current 7.5mA mean) 3.0 — MHz max
1. With no anode input power.
1
1. With no anode input power.
For average pulse input powers greater than 25 watts the heater voltage
25
For average pulse input powers greater than 25 watts the heater voltage
mum capacitance of 4000pF shunted across the heater directly at the
4000
mum capacitance of 4000pF shunted across the heater directly at the
input terminals; in some cases a capacitance as high as 2uF may be nec-
2 a
input terminals; in some cases a capacitance as high as 2uF may be nec-
ween 0 and —55°C the cathode heating time is 3 minutes minimum
3 °C
ween 0 and —55°C the cathode heating time is 3 minutes minimum.
voltage pulse above 80% amplitude. Any capacitance in the viewing
80
voltage pulse above 80% amplitude. Any capacitance in the viewing
With anode temperature 40°C + 10°C measured at the point indicated
10 °C
With anode temperature 40°C + 10°C measured at the point indicated
10
1 a
10. Measured with a v.s.w.r. greater than 1.5:1 in all phases of the mis-
Pulses are defined as missing when the r.f. energy level is less than 70%
70
Pulses are defined as missing when the r.f. energy level is less than 70%
of the normal energy level in the frequency range 8770 to 8830MHz
8830
of the normal energy level in the frequency range 8770 to 8830MHz.
pulses applied during any consecutive 5 minute interval of a 15 minute
15 a
pulses applied during any consecutive 5 minute interval of a 15 minute
12
12 a
12. When a signal of the same frequency as the magnetron operating fre-
system. The v.s.w.r. is tested to be greater than 8:1
1 v
system. The v.s.w.r. is tested to be greater than 8:1.
13
6.3
13. Measured with heater voltage of 6.3V and no anode input power, the
heater current limits are 0.43A minimum, 0.60A maximum
0.6
heater current limits are 0.43A minimum, 0.60A maximum.
14
14
14. Design test only. The maximum frequency change with anode tempera-
1. Anode temperature to be measured at this point
1
1. Anode temperature to be measured at this point.
