8T87RB, it is metal ceramic high-power triode, with the directly heated thorium tungsten cathode, the anode is cooled by forced air. Max anode dissipation power 20kW, when the frequency is less than 40MHz, the continue output power can up to 35kW, this tube is mainly used as oscillators and amplifiers in industrial high frequency medium heated equipments.
8T87RB, it is metal ceramic high-power triode, with the directly heated thorium tungsten cathode, the anode is cooled by forced air. Max anode dissipation power 20kW, when the frequency is less than 40MHz, the continue output power can up to 35kW, this tube is mainly used as oscillators and amplifiers in industrial high frequency medium heated equipments.
Electrical Characteristics
| Filament Voltage |
8V |
| Filament Current |
200A |
| (Ia=0.2A) Transconductance |
≥16mA/V |
| Amplification Factor |
20 |
| Interelectrode Capacitances |
| Grid-Anode |
32pF |
| Grid-Filament |
47pF |
| Filament- Anode |
2.3pF |
| Weight |
13kg |
| Operating position |
Vertical or Anode Down |
| Cooling |
Forced air |
| Cooling air flow |
150m³/min |
| Air flow on stem |
60m³/h |
| Max Temperature at any point tube envelope |
250ºC |
Limit Working Conditions:
| Frequency |
40MHz |
| DC Anode Voltage |
14Kv |
| DC Grid Voltage |
-2000V |
| Anode dissipation |
20kW |
| Grid dissipation |
600W |
| DC Anode current |
5A |
| DC Grid current |
0.7A |
Typical Operation:
| Frequency |
40MHz |
| Filament voltage |
8V |
| DC Anode voltage |
10kV |
| DC Grid voltage |
-2000V |
| Grid RF peak voltage |
1730V |
| DC anode current |
4.6A |
| DC grid current |
0.45A |
| Output power |
35kW |
Product Picture
Dimension(mm)
Product Description
8T87RB is a High frequency metal ceramic Electron valve triode designed specifically for industrial applications. This tube uses a coaxial design and metal-ceramic technology. This tetrode may be operated in CW or pulse modes.
For operation in pulse mode, the parameters depend on each equipment characteristics.
We manufacture and export the following all models.
Ceramic vacuum tube, Vacuum tube, Ceramic tube, Electron tube, Electron triode, Electron tetrode, Electron quadrode, Electron pentode, Electronic tube, Electronic triode, Electronic tetrode, Electronic quadrode, Electronic pentode, Power grid tube, Ultra-high frequency electronic tube, Ultra-high frequency heating tube, Electronic transmitting tube, Metal ceramic transmitting tube, Amplifier tube, laser power tube, ceramic rf tube, power triode tube, rf power triode, vacuum tube amplifier, transistor, Microwave magnetron.
FC-10FA, FC-10FT, FC-732F, FC-735F, FC-735FT, FC305F, FC311, FC312F, FC620F, FC620FT,
FD911S, FD003Z, FD-5S,
FC10FT, FC201F, FC307F, FC307FS, FC308C, FC310C, FC310F, FC502F, FC732F, FC734F, FC735F,
FU-33, FU-833A, 833A, 833C, FU-74F, GU-74B, FU-100F, FU-728F, FU-113F, FU-113FG, FU-998F, FU-5S, FU-62S, FU-610F, FU-610FA, FU-610S, FU-724F, FU-724S, FU-727F, FU-824F, FU-824FA, FU-834F, FU-834FA, FU-924F, FU-924FA, FU-928F, FU-836F, FU-947F, FU-101F, FU-101M, FU-101Z, FU-101C, FU-832C, FU-832FA, FU-832F, FU-832M, FU-917F, FU-917M, FU-307S, FU-74F, FU-250F, FU-252F, FU-946F, FU611F, FU612F, FU613F, FU001F, FU104C, FU104Z, FU115F, FU116F, FU252F, FU615F, FU616C, FU617F, FU618F, FU720F, FU820C, FU820F, FU002F, FU617FT, FU-431S
FM70FT,
ML8533, ML8536
YU191B, YU191C, YU-148, YU-108, 3CX4500H3, YU-148, 3CX6000A7, YU-191B,
YL1050, YL1057, YL1631, YL1420,
CQK25-2, CQK50-2
3CX2500H3, 3CX2500A3, 3CX2500F3, 3CX3000A7, 3CX3000F7, 3CX1500D3, 3CX10000D3, 3CX10000A3, 3CX10000A7, 3CX10000H3, 3CX15000A3, 3CX15000A7, 3CX15000H3, 3CX20000H3, 3CX20000A7,
3CPX800A7, 3CPX800A7, 3CX1500A7, 3CPX1500A7, 3CX5000A7, 3CPX5000A7, YC156, YC156A, YC179, YC108, YU158, YC236, YC-257,
3CW5000F1, 3CW5000F3, 3CW40000H3, 3CW45000H3, 3CW20000A7, 3CW20000H3, 3CW20000H7, 3CW30000H3, 3CW30000A7, 3CW30000H7, 3CX2500A3, 3CX2500F3, 3CX2500H3, 3CX3000A7, 3CX1500A7, 3CW20000A7,
4CX250B, 4CX250R, 4CX250FG, 4CX800A, GU-74B, 4CX350A, 4CX350F, 4CX1000A, 4CX1500B, 4CX3500A, 4CW1000A, 4CX1500A, 4CX3000A, 4CX5000A, 4CX5000R, 4CX7500A, 4CX10000D, 4CX10000J, 4CX15000A, 4CX20000C, 4CX20000D, 4CX20000E, 4CV100000C, 4CX250K, 4CX1500A, 4CX3000A, 4CX15000A, 4CV100000C, 4CX35000C, 4CX5000A, 5CX1500A,
CTK12-4, CTK12-1, CTK15-2, CTK-25-4, ITK12-1, ITK3-1, ITK5-1, ITK15-2, ITK30-2, ITK60-2, ITL12-1, ITL3-1, ITL5-1, ITL9-1, ITL15-2, TH5-6, TH6-3A, TH382, TH382, TH584, TH338, TH331, TH537, TH527, TH327, TH582, TH558, TH610, TH375, TH576, TH373, TH328, TH347, TH375, TH537, TH558, TH373.
E3061, E3062, E3062E, E3069, E3130,
RS3060CL, RS3060CJ, RS3021CJ, RS3026CJ, RS3040CJ, RS3041CJ, RS3041CL, RS3040CJ, RS3040CLX, RS3060CJ, RS3060CL,RS3060CJC, RS3021CJ, RS2048CJ, RS2048CJC, RS1034SK, RS1034SL, RS1072C, RS2054SK,
8560AS, 928F, 836F, 8741, 7T85RB, 7T69RB, 8F75R, 7F71RA, 8F68R
6T51, 6T58RA, 7T62R, 7T62RE, 7T85RB, FU-947F, 7T69RB, 7T84RB, 7T69RB, 8T25RA, 8T85, 8T85RB, 8T87RB, 8F76R, 8T69JB,
BW1608J2, FU1608C,
BW1184J2, BW1185J2
SK300 Socket, SK1300 Socket, SK2210 Socket, SK184 Socket.
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