Electron tube 8F76R VHF tetrode
Output power 5.5kw
General characteristic:
Cathode thoriated tungsten
Heating direct
Filament voltage 7V
Filament current 64A
Interelectrode capacitances, approx.
Control grid-anode 0.5 pf
Cathode-control grid 48pf
Control grid-screen grid 56pf
Screen grid-anode 15pf
Transonductance (la=2A) 62ma/v
Internal amplification factor, average 8.5
Operating position vertical, anode up
Weight, approx. 4.5kg
Anode cooling (1) forced air
Air flow, min. 5000L/min
Pressure drop, min. 340pa
Cooling at the sealing between electrode terminal and ceramic forced air
Temperature on the surface of the tube, max. 250 c
Values for cooling given for maximum anode dissipation
Maximum ratings:
Frequency 250 MHz
Anode voltage 9 kv
Anode current 3A
Control-grid voltage -1 kv
Screen-grid voltage 1.5 kv
Anode dissipation 6 kw
Control-grid dissipation 70 w
Screen-grid dissipation 150 w
Typical operation:
Class ab RF power amplifier
Frequency 21 MHz
Output power 5.5 kw
Intermodulation distortion -44 dB
Anode voltage 5.5 kv
Control-grid bias voltage -82 v
Screen-grid voltage 800 v
Anode current (with signal) 1.3 a
Anode cureent (at zero signal) 0.6 a
Control-grid current 0 ma
Screen-grid current 6 ma
HERTZ's Electronic Transmitting Tube is applied in broadcasting, television, , communication, laser machine and industry heating machine, etc.
And HERTZ's Electronic Transmitting Tube has been exported to America, Germany, Britain, Italy, Brazil, Turkey and many Asian countries.
And some of HERTZ's Electronic Transmitting Tubes can used to be the replacement of Thomson, NEC, Eimac's products.
By the long experience, rich varieties, good quality and cheap price, Xuguang's Electronic Transmitting Tubes are more and more welcomed worldwide in the recent years.
Electron tubes of HERTZ are wildly used in broadcasting, television, laser machine and industry heating machine, etc.
1, Vacuum electron tube, electronic tube, vacuum electronic tube, transmitting tube, broadcasting tubes, vacuum valve, power valve:
ML8533
ML8536
ML8741
ML8755
811A
833A/C
E3062
E3069
E3130
7T84RB
7T85RB
7T69RB
8T85RB
8T25RA
FD911S
FD911SA
FD934S
CTK15-2
ITL3-1
ITL5-1
ITL9-1
ITL12-1
ITL15-2
ITL30-2
BW1184J2
BW1185J2
BW1608J2
FU-501
FU-924F
833A/C
3CX2500A3
3CX2500F3
3CX2500H3
3CX3000A7
3CX4500H3
3CX6000H3
3CX15000A7
3CX15000H3
3CX20000H3
3CW20000A7
FU-924F
4CX1500A
4CX3000A
4CX5000A
4CX15000A
4CX20000C
4CX20000D
4CX35000C
4CW50000J
4CV100000C
7F71RA
8F75R
8F76R
TH318
TH328
TH347
TH373
TH375
TH382
TH527
TH537
TH558
TH582
TH584
RS1072C
RS2048CJ
RS2054SK
RS3021CJ
RS3041CJ
RS3040CJ
YU108
YU148
YD1102
YD1202
YD1212
YL1050
YL1056
YL1057
YL1420
YL1631
2, Vacuum interrupter (Ceramic, Glass Vacuum Interrupter):
TD-40.5/2500-31.5M
TD-40.5/2000-31.5C
TD-40.5/2000-31.5M
TD-40.5/1250-25
TD-40.5/1250-25B
TD-24/2000-25
TD-24/1600-25
TD-24/1250-20
TD-24/1250-16
TD-24/1250-16B
TD-12/4000-50C
TD-12/3150-50M
TD-12/3150-40C
TD-12/3150-40E
TD-12/3150-40J4
TD-12/2500-31.5
TD-12/2500-25
TD-12/2000-40B
TD-12/2000-31.5B
TD-12/2000-31.5J1
TD-12/2000-25A
TD-12/1600-40
TD-12/1600-31.5U
TD-12/1250-31.5E
TD-12/1250-31.5F
TD-12/1250-31.5G
TD-12/1250-31.5H
TD-12/1250-25B
TD-12/1250-25F
TD-12/1250-25H
TD-12/1250-25Q
TD-12/1250-20C
TD-12/1250-20M
TC-15/630-20
TF-12/630-20H
TJC-7.2/450
TJC-1.14/630
TJC-1.14/400
