Power - TV Horizontal Output (sweep) ·Pentode
High-power line-output pentode designed for color-television horizontal deflection.
High-power line-output pentode for color-television horizontal deflection.
Magnoval 9-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.
1 physical section, each with unique specifications.
Section 1
Published ratings and characteristics promoted where clearly stated; identical repeated sections compressed when applicable.
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
40 V
Published nominal value
Heater current
300 mA
Published nominal value
Maximum plate dissipation
35 W
Published maximum rating
Maximum peak anode voltage
7 kV
Design-centre rating; 8 kV design-max
Data set 02
Published operating points and test conditions from this source.
Heater voltage
40 V
Heater current
300 mA
Heater current If 300 mA
300 a
Heater current If 300 mA
Heater voltage Vs 40 v
40 a
Heater voltage Vs 40 v
Anode to grid No. 1 281 b
281 A
Anode to grid No. 1 281 b
Anode voltage Va 160 50 70 V
70 A
Anode voltage Va 160 50 70 V
Grid No. 3 voltage Vgs 0 0 (VY
3 v
Grid No. 3 voltage Vgs 0 0 (VY
Grid No. 2 voltage Vg2 160 175 205V
2 v
Grid No. 2 voltage Vg2 160 175 205V
Grid No. 1 voltage Vgl 0 ~10 -11 Vv
1 v
Grid No. 1 voltage Vgl 0 ~10 -11 Vv
Anode current I, 1400 800 1100 mA
1100 A
Anode current I, 1400 800 1100 mA
Grid No. 2 current Ig2 45 70 85 mA
85 mA
Grid No. 2 current Ig2 45 70 85 mA
The minimum required cut-off voltage (_Vgl) during flyback at V,
7000 v
The minimum required cut-off voltage (_Vgl) during flyback at V, = 7000 V and
Minimum required screen grid voltage: Vg2 min. See page 4, 5
5 s
Minimum required screen grid voltage: Vg2 min. See page 4, 5
Recommended screen grid series resistor: Rgy rec See page 4, 5
5 s
Recommended screen grid series resistor: Rgy rec See page 4, 5
In circuits where decoupling capacitors in the grid no.2 or the grid no.3 circuits are
3 s
In circuits where decoupling capacitors in the grid no.2 or the grid no.3 circuits are
by means of a 1002 resistor between g2 and the gy-bypass capacitor and a 1000
1000 a
by means of a 1002 resistor between g2 and the gy-bypass capacitor and a 1000
resistor between g3 and the g3-bypass capacitor. The 1000 Q2 resistor should be
1000 s
resistor between g3 and the g3-bypass capacitor. The 1000 Q2 resistor should be
At Zgl
220 A
At Zgl = 200 k2 (£ = 50 Hz), kaRMS = 220 V and without wiring and socket
capacitance, the equivalent grid hum voltage is less than 5 mV,
5 a
capacitance, the equivalent grid hum voltage is less than 5 mV,
4. With Rgy < 10 K< capacitive decoupling of g3 is not required
4 W
4. With Rgy < 10 K< capacitive decoupling of g3 is not required.
of 1000 pA and a nominal mains voltage
1000 A
of 1000 pA and a nominal mains voltage.
tube. (Tolerances of deflection-components and 10 7 mains voltage fluctuations taken
7 a
tube. (Tolerances of deflection-components and 10 7 mains voltage fluctuations taken
a D.C. voltage of at least +20 V is applied to the beam plate (g3), To compensate
20 a
a D.C. voltage of at least +20 V is applied to the beam plate (g3), To compensate
must be increased with 10 % of the anode supply voltage when not stabilized
10 s
must be increased with 10 % of the anode supply voltage when not stabilized.
Grid No. 1 to filament Cglf max. 0.2 pF
1 a
Grid No. 1 to filament Cglf max. 0.2 pF
Anode voltage in cold condition Vao max. 700
700 A
Anode voltage in cold condition Vao max. 700
Anode peak voltage Vap max. 7000 V
7000 A
Anode peak voltage Vap max. 7000 V
Anode dissipation Wy max. 35 W
35 A
Anode dissipation Wy max. 35 W
Grid No. 3 voltage Vg3 max. 30 Vv
3 v
Grid No. 3 voltage Vg3 max. 30 Vv
Grid No. 2 voltage in cold condition Vg20 max. 700 V
2 v
Grid No. 2 voltage in cold condition Vg20 max. 700 V
Grid No. 2 voltage Vg2 max. 275 V
2 v
Grid No. 2 voltage Vg2 max. 275 V
Grid No. 2 dissipation Wg, max. 7 W 2
2 s
Grid No. 2 dissipation Wg, max. 7 W 2
Cathode current I max. 500 mA
500 a
Cathode current I max. 500 mA
Cathode peak current Ikp max. 1500 mA
1500 a
Cathode peak current Ikp max. 1500 mA
Cathode-to-heater voltage Vi max. 250 V
250 a
Cathode-to-heater voltage Vi max. 250 V
Grid No. 1 resistor: fixed bias Rg1 max., 0.5 MQ 9)
1 s
Grid No. 1 resistor: fixed bias Rg1 max., 0.5 MQ 9)
Grid No. 3 circuit resistance Rgs max. 10 kQ 4)
3 s
Grid No. 3 circuit resistance Rgs max. 10 kQ 4)
Bulb temperature thulb max. 300 ©OC 5)
5 a
Bulb temperature thulb max. 300 ©OC 5)
Anode dissipation W, max. 45 W
45 A
Anode dissipation W, max. 45 W
Grid No. 2 dissipation Wgz max, 9 W
2 s
Grid No. 2 dissipation Wgz max, 9 W
Anode peak voltage Vap max. 8000 V 3
3 A
Anode peak voltage Vap max. 8000 V 3
Neg. grid No. 1 peak voltage ~Veip max. 550 V D
1 a
Neg. grid No. 1 peak voltage ~Veip max. 550 V D
3. The circuit design has to be such that negative control grid currents up to 5
3 s
3. The circuit design has to be such that negative control grid currents up to 5
Care should be taken that with 5 micro-amperes grid current the limiting values
5 a
Care should be taken that with 5 micro-amperes grid current the limiting values
4 I3 peak V
4 a
4 I3 peak V=265V