High Frequency Metal Ceramic Power Grid Tube (8T85RB)

• Customization: Available
• Shape: Metal Porcelain Tube
• Cooling Method: Air Cooled Tube
• Model NO.: 8T85RB
• Working Frequency: High Frequency
• Encapsulation Structure: Other
• Power Level: High Power
• Material: Metal Ceramic
• Filament Voltage: 6.3V
• Filament Current: 35A
• Amplifcation Factor: 21
• Max Power: 5.1kw
• Working Position: Vertical
• Max Height: 230mm
• Max Diameter: 130mm
• Max Weight: 1.5kg
• Cooling: Forced Air
• Transport Package: Foam Packing
• Trademark: SETEC JINGGUANG
• Origin: China
• HS Code: 8540890090
• Production Capacity: 100PCS Monthly

Product Description

 8T85RB, it is thorium tungsten cathode triode, with metal ceramic structure, the anode is cooled by forced air, the max anode dissipation power 10kW, the max DC anode voltage 12Kv, the max high working frequency 45MHz, the max output power 12kW, the tube is mainly used as oscillator in high frequency heating equipments.
 

Electrical Characteristics

Filament Voltage	12V
Filament Current	40A
Amplification Factor	20
Transconductance	11mA/V
Interelectrode Capacitances
Grid-Anode	15.4pF
Grid-Filament	21pF
Filament- Anode	0.86pF
Max Frequency	45MHz
Max Height	305mm
Max Diameter	205.5mm
Weight	9kg
Operating position	Vertical Anode Down
Cooling	Forced air
Air flow	22m³/min
Max Incoming Air Temperature	40ºC
Max Temperature at any point tube envelope	250ºC
Max Temperature anode core and seals	250ºC

                                                
Limit Working Conditions:
RF power amplifier and oscillator            

	Continuous   Intermittent
DC Anode Voltage	12          12    kV
DC Gride Voltage	2000        2000  V
DC Anode Current	2.5          3    A
DC Grid Current	0.3          0.4   A
Anode input Power	25          33   kW
Anode Dissipation	10          10   kW
Grid Dissipation	250         300   W

Typical Operation:

	Continuous  Intermittent
DC Anode Voltage	8           11-11.5 kV
DC Anode Current	2           2.3-2.8  A
DC Grid Current	0.22        0.25-0.27 A
Output Power	12          17.5-23.5 kW
Grid resistance	4           4.5-5 KΩ

 

Product Picture

Dimension(mm)

 

Product Description

 

8T85RB is a High frequency metal ceramic Power grid tube 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 the following all models.
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/RY-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-832F, FU-834F, FU-834FA, FU-836F, FU-924F,FU-924FA,FU-928F,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, FU-947F FU611F, FU612F, FU613F, FU001F, FU104C, FU104Z, FU115F, FU116F, FU252F, FU615F, FU616C, FU617F, FU618F, FU720F, FU820C,FU820F, FU002F, FU617FT, FU-84F, FU-74F, FU-1608C, FU-1608F.
GU84B, GU74B, GU78B.
FM70FT,ML8533, ML8536,YU191B, YU191C, YU-148, YU-108,, YU-148, YU-191B,YL1050, YL1057, YL1631, YL1420,YD1202, YD1212.
BW1184J2F, BW1185J2F, BW1184J, BW1185J, BW1184J2, BW1185J2, BW1608J2F, BW1608J.CQK25-2,CQK50-2.
3CX4500H3,3CX6000A7,3CX2500H3,3CX2500A3,3CX2500F3,3CX3000A7,3CX3000F7,3CX1500D3,3CX10000D3,3CX10000A3,3CX10000A7,3CX10000H3,3CX15000A3,3CX15000A7,3CX15000H3,3CX20000H3,3CX20000A7,3CX800A7,3CPX800A7,3CX1500A7,3CPX1500A7,3CX5000A7,3CPX5000A7,YU-158.
YC-156,YC-156A,YC-179,YC-236,YC-257.
3CW5000F1,3CW5000F3,3CW40000H3,3CW45000H3,3CW20000A7,3CW20000H3,
3CW20000H7,3CW30000H3,3CW30000A7,3CW30000H7.
3CX2500A3,3CX2500F3,3CX2500H3,3CX3000A7, 3CX1500A7, 3CW20000A7.
4CX250B, 4CX250R, 4CX250FG, 4CX800A/RY-74B, 4CX800A, 4CX350A, 4CX350F, 4CX1000A,4CX1500B,4CX3500A,4CW1000A,4CX1500A,4CX3000A,4CX5000A,4CX5000R,4CX7500A,4CX10000D,4CX10000J,4CX15000A,4CX20000C,4CX20000D,4CX20000E,4CV100000C, 4CX250K, 4CX1500A, 4CX3000A, 4CX3500A, 4CX15000A, 4CV100000C, 4CX35000C, 4CX5000A,5CX1500A.
CTK12-4, CTK12-1, CTK15-2, CTK25-4, ITK12-1, ITK3-1, ITK5-1, ITK15-2, ITK30-2, ITK60-2, ITK70-2, ITK90-1, 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.
E3061, E3062, E3062E, E3069, E3130.
RS3060CL, RS3060CJ, RS3021CJ, RS3026CJ, RS3040CJ, RS3041CJ, RS3041CJ, RS3040CJ, RS3060CJC, RS3021, RS2048CJ, RS2048CJC, RS1034SK, RS1034SL, RS1072C, RS2054SK.
8560AS, 928F,836F, 8741, 7T85, 7T69, 8F75R, 7F71RA, 8F68R.
6T51, 6T58RA, 7T62R, 7T62RE, 7T85RB, FU-947F, 7T69RB, 7T84RB, 7T69RB, 8T25RA, 8T85B, 8T85RB, 8T87RB, 8F76R, 8T69JB.
SK300 Socket, SK1300 Socket, SK2210 Socket, SK184 Socket.

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