Data set 01
1947 Westinghouse
Published operating points and test conditions from this source.
Gauge
Other
1x 107510 5% 10~ mm Hg. The operating filament is a thoria c
10
1x 107510 5% 10~ mm Hg. The operating filament is a thoria coated iridium wire. Filament burnout will not
Yoltage (ac or de}approx
500
Yoltage (ac or de}approx. .. ........... 5 Volts lon collectar Voltage . ... ... ........ 500 max. Volts
Currant . . . . L e e e e e e e
15
Currant . . . . L e e e e e e e 13 Ampares lon Collector DC Power loput. . ..... ... 15 max. Watts
Operating: Filoment Yeltoge (oc orde)
5.5
Operating: Filoment Yeltoge (oc orde) ... ... .. ... 5.5 max. Volts
Cathode. . . . v v i v v i i v v a Therio Coated [ridium Filament Ambient Temperature
100
Cathode. . . . v v i v v i i v v a Therio Coated [ridium Filament Ambient Temperature . . . . ... ........ 100 mox. °C
Voltage . . . . o o it i e e
65
Voltage . . . . o o it i e e 2.0 Yolts lon Collector Voltage . , . ..., ........ +65 max. VYolts
Current at § x
2.25
Current at § x 105 mm Hge v ov o v i i e oo 2.25 Amperes Outgas-Filament-Electron-Collector
Electrode Voltage
-65
Electrode Voltage . . ... ... ... ..... -65 max. Volts
Filament Voltage (ocorde) . .. ... o o
2
Filament Voltage (ocorde) . .. ... o o0 2.0 max. Volts
/r\ il Voltage {facordc) .. . .. ... i,
5
/r\ il Voltage {facordc) .. . .. ... i, 5.0 Volts
CUrrent « o ot e e e e e e e
13
CUrrent « o ot e e e e e e e 13 Amperes
Yoltage with respect to Dperote Filament
160
Yoltage with respect to Dperote Filament . . . 160 Volts
At
1.1
At1 107 mmHg .. 1.1 Volts
Frem | x
1
Frem | x 107% 46 1x 10~2 mm Hg. .. .. ... 1 Mo.
From
50
From 1x 107310 1% 107 mm Hg. . ... ... 50 HA.
OUTGASSING P NG S=(H/i) = (W/P) L
0.4
OUTGASSING P NG S=(H/i) = (W/P) L 0.4 (mm Hg)™'
... 1% 107810 6 < 10! mm Hg
10
... 1% 107810 6 < 10! mm Hg
Quigas Filament (-)
-587
Quigas Filament (-)----587 Operate Fllament(-}-- & * Voltage must nat be applied across operate filament during out-
3 ° / rd I-.Pra|s".mrge—
3
3 ° / rd I-.Pra|s".mrge—
108 10° 10 1o 162 1g! | 10 100
100
108 10° 10 1o 162 1g! | 10 100
from
103
from 1075 to 103 ampere is required for measuring electron current and a sensitive
microammeter with ranges from
107
microammeter with ranges from 1078 to 107° amperes is required in the ion collector
circuit. The filament power required is
5.5
circuit. The filament power required is 2 volts at 2.5 amperes for operation and 5.5 volts
at
2
at13 amperes for outgassing. A circuit incorporating these features is shown in Figure 2.
In this circuit, a
100
In this circuit, a 300 volt, 100 milliampere stabilized power supply is used.
negative, and the electron collector approximately
60
negative, and the electron collector approximately 60 volts positive with respect to the
° D.C. |
5
° D.C. | 5V
should read
2
should read .002pA at IXIG? mm He.
Note
2
Note 2. Fine control for fiiament voltage
will be compensated by a change in filament voltage, is shown in Figure
3
will be compensated by a change in filament voltage, is shown in Figure 3.
Col-}LECtor - L) ° L [ [J o L o L] [ * k'] o L] - [] [] L ] ® [
7
Col-}LECtor - L) ° L [ [J o L o L] [ * k'] o L] - [] [] L ] ® [ 7
Characteristic
tentiometers in the resistance chain, so that the ion collector is approximately
60
tentiometers in the resistance chain, so that the ion collector is approximately 60 volts