Power - Tetrode (NOT beam) ·Tetrode-Tetrode
Double tetrode designed for RF Class-C and audio-frequency amplifier service. Two power sections share one envelope for paired or push-pull output operation.
Double tetrode for RF Class-C and AF amplifier service.
Septar 7-contact
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
2 physical sections, each with unique specifications.
Section 1
Published values promoted where clearly readable; identical repeated sections compressed when applicable.
Section 2
No fixed ratings are recorded for this section.
Source-dependent data
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
Heater voltage
6.3 V
Published nominal value or midpoint of published range
Heater current
1.3 A
Published nominal value or midpoint of published range
Input capacitance
7 pF
Published first-page value
Output capacitance
2.6 pF
Published first-page value
Data set 02
Published operating points and test conditions from this source.
quencies up to
0 MHz
| quencies up to 0'00 Mc/s or as L.F. amplifier
bei Frequenzen his
600 MHz
| bei Frequenzen his 600 MHz ode: als NF-Verstarker
Cathode; oxide coated Vf
12.6 V
| Cathode; oxide coated Vf = 6.3 12.6 V
Cathode; oxyde If
650 mA
| Cathode; oxyde If = 1.3 0.65 A
Plate voltage
600 V
Cooling | Va = 600 V up to 150 Mc/s
Plate voltage
150 MHz
Cooling | Va = 600 V up to 150 Mc/s
Plate voltage
500 V
Cooling | Va = 500 V up to 200 Mc/s
Plate voltage
200 MHz
Cooling | Va = 500 V up to 200 Mc/s
Plate voltage
300 V
Cooling | Va = 300 V up to 430 Mc/s
Plate voltage
430 MHz
Cooling | Va = 300 V up to 430 Mc/s
Plate voltage
600 V
Cooling | Va = 600 V jusqu'a 150 MHz
Plate voltage
150 MHz
Cooling | Va = 600 V jusqu'a 150 MHz
Plate voltage
500 V
Cooling | Va = 500 V jusqu'a 200 MHz
Plate voltage
200 MHz
Cooling | Va = 500 V jusqu'a 200 MHz
Plate voltage
300 V
Cooling | Va = 300 V jusqu'a 430 MHz
Plate voltage
430 MHz
Cooling | Va = 300 V jusqu'a 430 MHz
Plate voltage
600 V
Cooling | Va = 600 V Ms 150 MHz
Plate voltage
150 MHz
Cooling | Va = 600 V Ms 150 MHz
Plate voltage
500 V
Cooling | Va = 500 V Ms 200 MHz
Plate voltage
200 MHz
Cooling | Va = 500 V Ms 200 MHz
Plate voltage
300 V
Cooling | Va = 300 V bis 430 MHz
Plate voltage
430 MHz
Cooling | Va = 300 V bis 430 MHz
See page
2.6 pF
Capacitances | See page 2 for internal Ca = 2.6 pF C0 = 1.6 pF
See page
1.6 pF
Capacitances | See page 2 for internal Ca = 2.6 pF C0 = 1.6 pF
neutralisation (Cn. Cn')
7 pF
Capacitances | neutralisation (Cn. Cn') 7.0 pF C1 = 4.4 pF
neutralisation (Cn. Cn')
4.4 pF
Capacitances | neutralisation (Cn. Cn') 7.0 pF C1 = 4.4 pF
lisation interne(CO
0.08 pF
Capacitances | lisation interne(CO3 ca') Cagt < 0.08 pF
siehe Seite
0.035 pF
Capacitances | siehe Seite 2 (Cn. Cn') Cagt-Cn c 0.035 pF
Plate current
20 mA
Typical characteristics | Typical characteristics µg2g1(Ia=20 mA) = 8
Transconductance
20 mA
Typical characteristics | S (I 20 mA) 2.5 mA/V
Transconductance
2.5 mA/V
Typical characteristics | S (I 20 mA) 2.5 mA/V
To Va
190 V
Class C telegraphy | To Va 190 Va w0
Cooling Temperature of anode seals and bulb max
220 °C
Cooling | Cooling Temperature of anode seals and bulb max. 220 °C
Temperature of bottom seals max
180 °C
Cooling | Temperature of bottom seals max. 180 °C
Temperature des scellements max
180 °C
Cooling | Temperature des scellements max. 180 °C
Caracteristiques limites Va = max
600 V
Maximum ratings | Caracteristiques limites Va = max. 600 V
Wa = max
10 W
Maximum ratings | Wa = max. 2x10 W
Screen-grid voltage
250 V
Maximum ratings | Vg2 = max. 250 V
WB
1.5 W
Maximum ratings | WB2 = max. 2x1.5 W
max
75 V
Maximum ratings | max. 75 V
Ig = max
55 mA
Maximum ratings | Ig = max. 2x55 mA
Control-grid current
2.5 mA
Maximum ratings | Ig 1 = max. 2x2.5 mA
Vkf = max
100 V
Maximum ratings | Vkf = max.. 100 V
£
200 MHz
Class C telegraphy | £ = 200 200 200 200 Mc/s
Plate voltage
200 V
Class C telegraphy | Va = 600 400 300 200 V
Screen-grid voltage
200 V
Class C telegraphy | Vg2 = 250 250 250 200 V
Plate current
50 mA
Class C telegraphy | Ia = 2x50 2x50 2x50 2x50 mA
Screen-grid current
4 mA
Class C telegraphy | Ig2 = 2x4 2x4 2x4.5 2x4 mA
Data set 03
Published operating points and test conditions from this source.
quencies up to
600 Mc/s
ClassC
classe C & des fréquences jusqu'd
600 Mc/s
ClassC
bei Frequenzen bis
600 MHz
ClassC
Cathode: oxide coated vr = 6,3
12.6 V
ClassC
siehe Seite 2 (Cpy, Cn') Cagi~Cn ¢
0.035 pF
ClassC
gypicaé characteristics pg2g1(Ig
20 mA
ClassC
bei Frequenzen bisg
600 MHz
ClassC
gathode: oxide coated ve = 6,3
12.6 V
ClassC
Caractéristiques limites Va = max
600 V
ClassC;Telegraphy
Grenzdaten Wy = max., 2x1
0 W
Telegraphy
Vg2 = max,
250 V
Telegraphy
Wg2 = max, 2x1,
5 W
Ix = max., 2x5
5 mA
Ig1 = max, 2x2,
5 mA
See page 2 for %nterna}) Ca 2,6 OF Co
1.6 pF
ClassC;PushPull
Voir page 2 pour neutra- C8!1
7 pF
ClassC;PushPull
lisation interne(Cp, Cn') Cagt ¢
0.08 pF
ClassC;PushPull
See page 2 for internal Ca [1]
2.6 pF
PushPull
See page 2 for internal Ca [2]
1.6 pF
PushPull
sation interne(Cp, Cp') Cagt
< 0.08 pF
PushPull
gypicaé characteristics pg2gt(Ig
20 mA
PushPull
Kenndaten s ( [1]
1 a
PushPull
Kenndaten s ( [2]
20 mA
PushPull
Va [1]
600 V
PushPull
Va [2]
150 Mc/s
PushPull
Va [1]
500 V
PushPull
Va [2]
200 Mc/s
PushPull
Va [1]
300 V
PushPull
Va [2]
430 Mc/s
PushPull
Vg [1]
600 V
PushPull
Vg [2]
150 KHz
PushPull
Vg [1]
500 V
PushPull
Vg [2]
200 MHz
PushPull
Vg [1]
300 V
PushPull
Vg [2]
430 MHz
PushPull
ax
5 ma
PushPull
Va V up to
150 Mc/s
PushPull
Va
300 V
PushPull
max
220 °C
PushPull
Va = 600 Vv jusqu' a
150 MHz
PushPull
Va [2]
200 MHz
PushPull
Kilhlung Temperatur der Einschmelzungen max
180 °C
PushPull
gen wenn: Va [1]
600 V
PushPull
gen wenn: Va [2]
150 MHz
PushPull
Va [1]
900 V
PushPull
Va [2]
430 MHz
PushPull
Kenndaten s (1g [1]
20 ma
ClassC
Kenndaten s (1g [2]
2.5 mA
ClassC