Data set 01
1963 Siemens
Published operating points and test conditions from this source.
Tetrode
Characteristics
Amplification factor
8.4
Transconductance
70000 µS
Emission current
35 A A
Amplification factor of screen grid
8,4
UG2 = 600
1000 V, V
Transconductance
70 mA/V mA/V
I A = 2,5
3,5 A A
Other
Heater voltage
10 V V
Heater current
≈ 86 A A
Frequency
250 MHz MHz
Anode voltage (dc)
5,5 kV 1) kV
Screen grid voltage (dc)
1000 V 1) V
Control grid voltage (dc)
– 250 V V
Cathode current (dc)
8,0 A A
Peak cathode current
35 A A
Anode dissipation
12 kW kW
Screen grid dissipation
150 W W
Control grid dissipation
50 W W
Frequency
220 220 220 MHz MHz
Bandwidth (– 3 dB)
12 18 12 MHz 2) MHz
Bandwidth (– 1,2 dB)
7,0 10 7,0 MHz 2) MHz
Output power, sync. level
16+0,63 ) ) 12+0,53 ) 12+0,42 ) kW 4) kW
3 8
3 3
Output power, black level
9+0,363) 6,6+0,293) 6,6+0,223) kW 4) 5) kW
Anode voltage (dc)
5,2 4,0 4,8 kV 1) kV
Screen grid voltage (dc)
900 800 800 V 1) V
Control grid voltage (dc)
– 85 – 75 – 75 V 6) V
sync. level
170 140 130 V V
Anode current (dc), black level
3,8 3,7 3,1 A 5) A
Screen grid current (dc), black level
120 110 100 mA 5) mA
Control grid current (dc), black level
50 60 30 mA 5) mA
Anode input power, black level
19,8 14,9 14,9 kW 5) A
Drive power, sync. level
46+6303) 30+5303) 10+4203) W 7) W
Anode dissipation, black level
10,8 8,3 8,3 kW 5) kW
Screen grid dissipation, black level
110 88 80 W 5) W
Control grid dissipation, black level
2,0 25 2,0 W 5) W
Anode load resistance
570 400 600 Ω Ω
Transmitter Tetrode
2022 CL
grounded control-grid screen-grid circuit, vision-to-sound
10:1
Frequency
250 MHz MHz
Anode voltage (dc)
5,5 kV kV
Screen grid voltage (dc)
1000 V V
Control grid voltage (dc)
– 250 V V
Cathode current (dc)
8,0 A A
Peak cathode current
35 A A
Anode dissipation
12 kW kW
Screen grid dissipation
150 W W
Control grid dissipation
50 W W
Frequency
220 220 MHz MHz
Bandwidth
10 10 MHz MHz
Output power, sync. level
5,5/0,55 2,2/0,22 kW 1) kW
3-tone intermodulation ratio
≥ 58 ≥ 60 dB 2)
Anode voltage (dc)
4,7 3,6 kV kV
Screen grid voltage (dc)
850 850 V V
Control grid voltage (dc)
– 70 – 70 V 3) V
Anode current (dc), black level
2,8 2,25 A A
Screen grid current (dc), black level
80 0 mA mA
Control grid current (dc), black level
20 0 mA mA
Anode input power, black level
13,2 8,1 kW A
Drive power, sync. level
150 90 W W
Drive power, sound
15 9,0 W W
Anode dissipation, black level
9,6 6,7 kW kW
Anode load resistance
600 500 Ω Ω
specification
176 Pfl 2 of the German Telekom , with a a
Transmitter Tetrode
2022 CL
The
4801 is available for tube operation in TV band III (see accessories).
The temperature of the metal-ceramic seals must not
220 °C at any point and the temper-
ature of the internal cathode terminal must not
250 °C. These requirements can be met with-
gram
25 °C inlet temperature at a normal air pressure of 1 bar (sea level). The cooling air a
Transmitter Tetrode
2022 CL
Capacitance
Cathode/control grid
≈ 76 pF pF
Cathode/screen grid
≈ 5,5 pF pF
Cathode/anode
≈ 0,07 pF 1) pF
Control grid/screen grid
≈ 126 pF pF
Control grid/anode
≈ 0,75 pF 1) pF
Screen grid/anode
≈ 21 pF pF
Cavity band III,
10 kW vision TK4801 Q94-X4801 kW
Transmitter Tetrode
2022 CL
Cooling
Transmitter Tetrode
2022 CL