Data set 01
1971 NEC
Published operating points and test conditions from this source.
Pentode
Other
! as a KRF power arplifier, griad \
0 W
! as a KRF power arplifier, griad \ 0. modulated amplifior
of di=ssipating
120
of di=ssipating 120 watts and the cathode L8 an ox1de coated
Amplifi-ation Factor, Grid No
2
Amplifi-ation Factor, Grid No. 2
Grid No
1
Grid No. 1 I I P T T T N SR
Transconductance {Ib
10
Transconductance {Ib-10Cmy) ....
Direct Interelectrode Capacitances
3 pF
Direct Interelectrode Capacitances: 3¢ ’ N
Caj, plate and erid No [1]
3
Caj, plate and erid No. 3} L..... Mediam, Al43
Caj, plate and erid No [2]
3
Caj, plate and erid No. 3} L..... Mediam, Al43
DC Flate Voltage ..ovvvvvenn. ceect ettt e et aennns PR [1]
1000 V
DC Flate Voltage ..ovvvvvenn. ceect ettt e et aennns PR 1000 1250
DC Flate Voltage ..ovvvvvenn. ceect ettt e et aennns PR [2]
1250 V
DC Flate Voltage ..ovvvvvenn. ceect ettt e et aennns PR 1000 1250
DC Girid Yo [1]
2 V
DC Girid Yo. 2 Voltage ........ c et ececeseensesssacereeaae 300 300 300 volts
DC Girid Yo [2]
300 V
DC Girid Yo. 2 Voltage ........ c et ececeseensesssacereeaae 300 300 300 volts
DC Girid Yo [3]
300 V
DC Girid Yo. 2 Voltage ........ c et ececeseensesssacereeaae 300 300 300 volts
DC Girid Yo [4]
300 V
DC Girid Yo. 2 Voltage ........ c et ececeseensesssacereeaae 300 300 300 volts
DC Grid No [1]
1 V
DC Grid No. 1 Voltage (note 2) Liuiiieieiiiieinnnnnnene. ~55 -60 -60 volts
DC Grid No [2]
2 V
DC Grid No. 1 Voltage (note 2) Liuiiieieiiiieinnnnnnene. ~55 -60 -60 volts
DC Grid No [3]
55 V
DC Grid No. 1 Voltage (note 2) Liuiiieieiiiieinnnnnnene. ~55 -60 -60 volts
DC Grid No [4]
-60 V
DC Grid No. 1 Voltage (note 2) Liuiiieieiiiieinnnnnnene. ~55 -60 -60 volts
DC Grid No [5]
-60 V
DC Grid No. 1 Voltage (note 2) Liuiiieieiiiieinnnnnnene. ~55 -60 -60 volts
Peak HF tirid No [1]
1 V
Peak HF tirid No. 1 Voltage (note 2} c.iviiiiiiinneennnnns 53 60 75 volts
Peak HF tirid No [2]
2 V
Peak HF tirid No. 1 Voltage (note 2} c.iviiiiiiinneennnnns 53 60 75 volts
Peak HF tirid No [3]
53 V
Peak HF tirid No. 1 Voltage (note 2} c.iviiiiiiinneennnnns 53 60 75 volts
Peak HF tirid No [4]
60 V
Peak HF tirid No. 1 Voltage (note 2} c.iviiiiiiinneennnnns 53 60 75 volts
Peak HF tirid No [5]
75 V
Peak HF tirid No. 1 Voltage (note 2} c.iviiiiiiinneennnnns 53 60 75 volts
DC Plate Current ....eiiiieiererroncosonssssnssansonssaas [1]
140 mA
DC Plate Current ....eiiiieiererroncosonssssnssansonssaas 140 140 200 mA
DC Plate Current ....eiiiieiererroncosonssssnssansonssaas [2]
140 mA
DC Plate Current ....eiiiieiererroncosonssssnssansonssaas 140 140 200 mA
DC Plate Current ....eiiiieiererroncosonssssnssansonssaas [3]
200 mA
DC Plate Current ....eiiiieiererroncosonssssnssansonssaas 140 140 200 mA
DC Grid No [1]
2 A
DC Grid No. 2 Current ....iiiiverrococscoannnens ceier e 10 10 18 nA
DC Grid No [2]
10 A
DC Grid No. 2 Current ....iiiiverrococscoannnens ceier e 10 10 18 nA
DC Grid No [3]
10 A
DC Grid No. 2 Current ....iiiiverrococscoannnens ceier e 10 10 18 nA
DC Grid No [4]
18 A
DC Grid No. 2 Current ....iiiiverrococscoannnens ceier e 10 10 18 nA
DC Grid No [1]
1 A
DC Grid No. 1 Current approX. .eeeeeeeresscesesocoannons - - 1
DC Grid No [2]
1 A
DC Grid No. 1 Current approX. .eeeeeeeresscesesocoannons - - 1
Driving Power approx. .;
0.1 W
Driving Power approx. .;................................ - 0.1 watis
Note [1]
2 V
Note 2. Grid No. 1 to Cathode peak voltage snould not exceed + 300V.
Note [2]
1 V
Note 2. Grid No. 1 to Cathode peak voltage snould not exceed + 300V.
Note [3]
300 V
Note 2. Grid No. 1 to Cathode peak voltage snould not exceed + 300V.
Grid No
3 W
Grid No.3-Moduiated RF Power Amplifier-Class C Telephony
DC Plate Voltage ........ S tdaecetriacecacannana Cesctesietanaennan
1500 V
DC Plate Voltage ........ S tdaecetriacecacannana Cesctesietanaennan . 1500 volts
DC Grid No [1]
2 V
DC Grid No. 2 Voltage .......ciiiieuinnnnn. e et tietane e . 400 volts
DC Grid No [2]
400 V
DC Grid No. 2 Voltage .......ciiiieuinnnnn. e et tietane e . 400 volts
DC Grid No [1]
1 V
DC Grid No. 1 Voltage ........ e, JE -300 volts
DC Grid No [2]
-300 V
DC Grid No. 1 Voltage ........ e, JE -300 volts
DC CGrid No
2 A
DC CGrid No. 2 Current ....ieiiiinennnaennns ceenen ceetesaeaaas et m?
Heater negative with respect to cathode ..o oo,
200
Heater negative with respect to cathode ..o oo, 200 volts
DC Plate Voltage ........... sheeesessececeerssertasett e [1]
1250 V
DC Plate Voltage ........... sheeesessececeerssertasett e 1250 125G volts
DC Plate Voltage ........... sheeesessececeerssertasett e [2]
125 V
DC Plate Voltage ........... sheeesessececeerssertasett e 1250 125G volts
DC Grid No [1]
3
DC Grid No. 3 VOolt8Ze ..ttt ineinenoenosnnsacoanssonenansas ~-100 -100 ~oltz
DC Grid No [2]
-100
DC Grid No. 3 VOolt8Ze ..ttt ineinenoenosnnsacoanssonenansas ~-100 -100 ~oltz
DC Grid No [3]
-100
DC Grid No. 3 VOolt8Ze ..ttt ineinenoenosnnsacoanssonenansas ~-100 -100 ~oltz
Grid Yo, [1]
2
Grid Yo, 2 Series Resistor (note 3) ottt ittt 43 A\
Grid Yo, [2]
3
Grid Yo, 2 Series Resistor (note 3) ottt ittt 43 A\
Grid Yo, [3]
43
Grid Yo, 2 Series Resistor (note 3) ottt ittt 43 A\
GRID NO3 ¢OUTAGE(EC=
0
GRID NO3 ¢OUTAGE(EC=0v
Llczrooma f., i HEATER VOLTASE(Ef)
-82
. Llczrooma f., i HEATER VOLTASE(Ef)-82VAL
GRID N2
3 V
GRID N23 VOLTAGEIECH
o GRID NO2 VOLTAZE/Z..,=
30
o GRID NO2 VOLTAZE/Z..,= 30v3S
Published value [1]
3 V
3. 43 IN froz uncodulated plate-voltage supply and 4.5 ke from fixii SHPP-
Published value [2]
43 V
3. 43 IN froz uncodulated plate-voltage supply and 4.5 ke from fixii SHPP-
Published value [3]
4.5 V
3. 43 IN froz uncodulated plate-voltage supply and 4.5 ke from fixii SHPP-
DC Grid No
3
DC Grid No. 3 Vol Tace velis
Bc Grid ~o [1]
1
Bc Grid ~o. 1 Cur et e > s 0 = e
Bc Grid ~o [2]
0
Bc Grid ~o. 1 Cur et e > s 0 = e
Plate Inpunt .... e e e o
300
Plate Inpunt .... e e e o . 300 watls
Grid No
2
Grid No. 2 Dissip ation watts
Grid No [1]
1
Grid No. 1 Dissip ation ® e o 8 a8 08 00 watts
Grid No [2]
8
Grid No. 1 Dissip ation ® e o 8 a8 08 00 watts
Grid No [3]
8
Grid No. 1 Dissip ation ® e o 8 a8 08 00 watts
Grid No [4]
0
Grid No. 1 Dissip ation ® e o 8 a8 08 00 watts
DC Grid Yo
3
DC Grid Yo. 3 Vol taze e ee iensee volis
DC CGrid YNo [1]
2
DC CGrid YNo. 2 Vo1 Tare . c e s e e PP \4:'.7‘
DC CGrid YNo [2]
4
DC CGrid YNo. 2 Vo1 Tare . c e s e e PP \4:'.7‘
DC CGrid YNo [3]
7
DC CGrid YNo. 2 Vo1 Tare . c e s e e PP \4:'.7‘
= oo HEATER VOUTAGE(Efi
63
= oo HEATER VOUTAGE(Efi 63V AC
‘ \ LA VHEATER VUCTAGL ( [1]
141
‘ \ LA VHEATER VUCTAGL (141 - F 1 VAl
‘ \ LA VHEATER VUCTAGL ( [2]
1
‘ \ LA VHEATER VUCTAGL (141 - F 1 VAl
Plate Dissiparicon note [1]
1
Plate Dissiparicon note 1) o i iieenn... et e 120
Plate Dissiparicon note [2]
120
Plate Dissiparicon note 1) o i iieenn... et e 120
Grid No [1]
2 W
Grid No. 2 Dissipation (note 1) ..vieinvennnnnnn., Ce et essa et eaaaa i
Grid No [2]
1 W
Grid No. 2 Dissipation (note 1) ..vieinvennnnnnn., Ce et essa et eaaaa i
Hewtor postcive » it rosnect to cathode (oo o0 [1]
0
Hewtor postcive » it rosnect to cathode (oo o0 0., .o ..... 200 valts
Hewtor postcive » it rosnect to cathode (oo o0 [2]
200
Hewtor postcive » it rosnect to cathode (oo o0 0., .o ..... 200 valts
Grid No. I Cireain gesistance, with fixed bhias
101
Grid No. I Cireain gesistance, with fixed bhias 101 ’ . max.,
Note
1
Note 1., Averaged over any audio-frequency cvcele of sine-wave form.
DC Plate Voliare ..., Ceceeneacans s s s [1]
0
DC Plate Voliare ..., Ceceeneacans s s s 000 300 30 voltis
DC Plate Voliare ..., Ceceeneacans s s s [2]
300
DC Plate Voliare ..., Ceceeneacans s s s 000 300 30 voltis
DC Plate Voliare ..., Ceceeneacans s s s [3]
30
DC Plate Voliare ..., Ceceeneacans s s s 000 300 30 voltis
DC Grid No
3 V
DC Grid No. 3 Voltage it eieenanss volts
DC Grid Vo [1]
2
DC Grid Vo. 2 V0liage veveeev... ettt ettt e 300 volts
DC Grid Vo [2]
300
DC Grid Vo. 2 V0liage veveeev... ettt ettt e 300 volts
Peak \F Grid No [1]
1 V
Peak \F Grid No. 1 to Grid No. 1 Voltage ........ Ceiaeaa. 100 volts
Peak \F Grid No [2]
1 V
Peak \F Grid No. 1 to Grid No. 1 Voltage ........ Ceiaeaa. 100 volts
Peak \F Grid No [3]
100 V
Peak \F Grid No. 1 to Grid No. 1 Voltage ........ Ceiaeaa. 100 volts
Zero Signal I Plate Currenl ....eeeeeeenan
80
Zero Signal I Plate Currenl ....eeeeeeenan 80 mA
Maxinum Signal DT Plate Current
280 mA
Maxinum Signal DT Plate Current ........... 280 ra
Maximum Signal LC Grid No [1]
2 A
Maximum Signal LC Grid No. 2 Current ...... 20
Maximum Signal LC Grid No [2]
20 A
Maximum Signal LC Grid No. 2 Current ...... 20
Effective Load Resistance, Plate to Plate [1]
5000
Effective Load Resistance, Plate to Plate . 5000 5800 8800
Effective Load Resistance, Plate to Plate [2]
5800
Effective Load Resistance, Plate to Plate . 5000 5800 8800
Effective Load Resistance, Plate to Plate [3]
8800
Effective Load Resistance, Plate to Plate . 5000 5800 8800