Data set 01
1971 NEC
Published operating points and test conditions from this source.
Tetrode
Other
technigues bein; empleyed, the NEC TF7
1
technigues bein; empleyed, the NEC TF71RA has hiesh transconductance essential
Current ...................} [1]
78 A
Current ...................}.................. 78 ~2mps,
Current ...................} [2]
2 A
Current ...................}.................. 78 ~2mps,
Maximun Startinge Current R R PL
160 A
Maximun Startinge Current R R PL 160 amous.
Transconductance (It= [1]
1.6
Transconductance (It=1.6 BED3.) veeeevecnencoanones 72 millimohs
Transconductance (It= [2]
72
Transconductance (It=1.6 BED3.) veeeevecnencoanones 72 millimohs
Amrlification Pactor, Grid No [1]
2
Amrlification Pactor, Grid No.2 to Crid Mo.l ...... 10.5
Amrlification Pactor, Grid No [2]
10.5
Amrlification Pactor, Grid No.2 to Crid Mo.l ...... 10.5
Grid No.l to Plate ...veiiiirccerernonasncenne
0.3
Grid No.l to Plate ...veiiiirccerernonasncenne 0.3 uuF
Filarent {o Plate .............;.........;
0.04
Filarent {o Plate .............;.........;.... 0.04 uuF
Grid Mool £ [1]
0
Grid Mool £0 F1ARENE «vovnenrnennenenneneen 54 uuF
Grid Mool £ [2]
54
Grid Mool £0 F1ARENE «vovnenrnennenenneneen 54 uuF
Grid No [1]
1
Grid No.1l to Grid N0.2 ceiviviereeorooansonncees 100 ypkF
Grid No [2]
2
Grid No.1l to Grid N0.2 ceiviviereeorooansonncees 100 ypkF
Grid No [3]
100
Grid No.1l to Grid N0.2 ceiviviereeorooansonncees 100 ypkF
Grid No [1]
2
Grid No.2 to Piate feeserencacotiensanoaaseens 14 puf-
Grid No [2]
14
Grid No.2 to Piate feeserencacotiensanoaaseens 14 puf-
Frequency for Maximum RAatings ceesesesceccesanoacns
250
Frequency for Maximum RAatings ceesesesceccesanoacns 250 NHz
G : Grid YNn
2
G : Grid YNn.2
Maximum incoming air temperature(
45
Maximum incoming air temperature(........ 45 oC
DC Plate Yoltage e cessacaseestees et etsnnannn
5000
DC Plate Yoltage e cessacaseestees et etsnnannn 5,000 volts
DC Crid No [1]
2 V
DC Crid No.2 Voltage ............;............ 1,000 volts
DC Crid No [2]
1000 V
DC Crid No.2 Voltage ............;............ 1,000 volts
DC Grid YNo.l Voltage R R TR
-500 V
DC Grid YNo.l Voltage R R TR -500 wvolts
DC Plate CUTTEnl tv.evneseeserereonoroononnnas
2.4
DC Plate CUTTEnl tv.evneseeserereonoroononnnas 2.4 amps.
Plate Dissination cieieveseeveeeseoeensnnnoans
5.5
Plate Dissination cieieveseeveeeseoeensnnnoans 5.5 k¥
Grid Mo [1]
1
Grid Mo.1 Dissination veveviveeeeeceraneenanns 20 watts
Grid Mo [2]
20
Grid Mo.1 Dissination veveviveeeeeceraneenanns 20 watts
DC Plete Voltage R R KT TR [1]
2520 V
DC Plete Voltage R R KT TR 2,520 3,000 volts
DC Plete Voltage R R KT TR [2]
3000 V
DC Plete Voltage R R KT TR 2,520 3,000 volts
PC Grid [1]
0.2
PC Grid 0.2 Voltasme coiviivrnnennnnnns 5C0 500 volts
PC Grid [2]
5
PC Grid 0.2 Voltasme coiviivrnnennnnnns 5C0 500 volts
PC Grid [3]
500
PC Grid 0.2 Voltasme coiviivrnnennnnnns 5C0 500 volts
Zero Sirnal DC Plate Current ..ovvevevse [1]
0 mA
Zero Sirnal DC Plate Current ..ovvevevse 0.% 0.5 amus.
Zero Sirnal DC Plate Current ..ovvevevse [2]
500 mA
Zero Sirnal DC Plate Current ..ovvevevse 0.% 0.5 amus.
DC Crid No
2 A
DC Crid No.2 Current:
FrequenCy toiieereaaesaesacasacasassnsas
220
FrequenCy toiieereaaesaesacasacasassnsas 220 FHz
Bandwidth {= [1]
1
Bandwidth {=1 dB) tuiuevevroenoeonannsanna 7 4z
Bandwidth {= [2]
7
Bandwidth {=1 dB) tuiuevevroenoeonannsanna 7 4z
Bandwidth {= [3]
4
Bandwidth {=1 dB) tuiuevevroenoeonannsanna 7 4z
DC Plate Voltage [1]
8 V
DC Plate Voltage .... 8 0 0 8 00 00 0 &4 000 a0 5,080 volis
DC Plate Voltage [2]
0 V
DC Plate Voltage .... 8 0 0 8 00 00 0 &4 000 a0 5,080 volis
DC Plate Voltage [3]
0 V
DC Plate Voltage .... 8 0 0 8 00 00 0 &4 000 a0 5,080 volis
DC Plate Voltage [4]
8 V
DC Plate Voltage .... 8 0 0 8 00 00 0 &4 000 a0 5,080 volis
DC Plate Voltage [5]
0 V
DC Plate Voltage .... 8 0 0 8 00 00 0 &4 000 a0 5,080 volis
DC Plate Voltage [6]
0 V
DC Plate Voltage .... 8 0 0 8 00 00 0 &4 000 a0 5,080 volis
DC Plate Voltage [7]
0 V
DC Plate Voltage .... 8 0 0 8 00 00 0 &4 000 a0 5,080 volis
DC Plate Voltage [8]
4 V
DC Plate Voltage .... 8 0 0 8 00 00 0 &4 000 a0 5,080 volis
DC Plate Voltage [9]
0 V
DC Plate Voltage .... 8 0 0 8 00 00 0 &4 000 a0 5,080 volis
DC Plate Voltage [10]
5080 V
DC Plate Voltage .... 8 0 0 8 00 00 0 &4 000 a0 5,080 volis
IC Grid %No [1]
2
IC Grid %No.2 Voltare L I I B R B A A A I R Y 1,000 volts
IC Grid %No [2]
1000
IC Grid %No.2 Voltare L I I B R B A A A I R Y 1,000 volts
DC Plate Current .uieeececeoneeen
1.8 A
DC Plate Current .uieeececeoneeen 1.8 amps.
\Plate Dissivation soeeeecee. LR B B A B B I K SO I B Y
3.5 kW
\Plate Dissivation soeeeecee. LR B B A B B I K SO I B Y 3.5 kW
Grid Yo [1]
2 W
Grid Yo.2 Dissipation ..... LU Y B R 50 wvatts
Grid Yo [2]
50 W
Grid Yo.2 Dissipation ..... LU Y B R 50 wvatts
Grid No.l Dissipation cveiecvecscseraossscsnes
20 W
Grid No.l Dissipation cveiecvecscseraossscsnes 20 watts
DC Plate Voltage ticeeenenonase S [1]
9 V
DC Plate Voltage ticeeenenonase S 9 600 s caa s e s volts
DC Plate Voltage ticeeenenonase S [2]
600 V
DC Plate Voltage ticeeenenonase S 9 600 s caa s e s volts
DC Grid lNo [1]
2
DC Grid lNo.2 Voltare ...... *t e 8 e 460640000 000ae
DC Grid lNo [2]
8
DC Grid lNo.2 Voltare ...... *t e 8 e 460640000 000ae
DC Grid lNo [3]
460640000
DC Grid lNo.2 Voltare ...... *t e 8 e 460640000 000ae
DC Grid lNo [4]
0
DC Grid lNo.2 Voltare ...... *t e 8 e 460640000 000ae
DC Grid Ho.l Voltame ocev.n.. ¢« oo
-150
DC Grid Ho.l Voltame ocev.n.. ¢« oo -150 volts
Peak RF Grid lNo.l Voltage
185 V
Peak RF Grid lNo.l Voltage 185 volts
DC Plate Current .veiiieiiniiavenerononnanene
1.3 A
. DC Plate Current .veiiieiiniiavenerononnanene 1.3 amps.
DC Crid YMo [1]
2 A
DC Crid YMo.2 Current ...civciconaenn aeetaoane 70 nA
DC Crid YMo [2]
70 A
DC Crid YMo.2 Current ...civciconaenn aeetaoane 70 nA
DC Grid No [1]
1 A
DC Grid No.1l Current .eceieeeevosnroasnnnsons 85 mA
DC Grid No [2]
85 A
DC Grid No.1l Current .eceieeeevosnroasnnnsons 85 mA
Driving Power (anprox.)in .......... evacseanene
16 W
Driving Power (anprox.)in .......... evacseanene 16 vatts
Plate Power Outvut (AnDroX.) eeverevecenooons
3.1 kW
Plate Power Outvut (AnDroX.) eeverevecenooons 3.1 kW
MAXIWMUM ALLCWARLT TEMPERATURE RI3E
1
MAXIWMUM ALLCWARLT TEMPERATURE RI3E 1
FILAMENT VOLTAGE (Ef) =
4 V
FILAMENT VOLTAGE (Ef) = 4 VOLTS. AC
GRID NC [1]
2 V
GRID NC.2 VOLTAGE (Ec2) = 500 VOLTS. DC
GRID NC [2]
500 V
GRID NC.2 VOLTAGE (Ec2) = 500 VOLTS. DC
GRID K0
1
GRID K0.1 VOLTAGK (Ec;) IN VOLTS
FILAKENT VOLTAGE (Ef) =
4 V
FILAKENT VOLTAGE (Ef) = 4 VOLTS. AC
CRID RO [1]
2 V
CRID RO.2 VOLTAGE Bcp) = 600 VOLTO. DC
CRID RO [2]
600 V
CRID RO.2 VOLTAGE Bcp) = 600 VOLTO. DC
GRID N0
1
GRID N0.1 VOLTAGH ]