Electron Tube 8T8RB is ceramic-metal triode with thoriated tungsten cathode and forced air cooling anode. With a maximum of anode dissipation power 10KW, and the maximum working frequency 45MHz, it is widely used as an oscillator / monofier for industry high frequency heating. It could replace types of TOSHIBA 8T85RB in application.
Triode 8T85RB electron tubes are high-power metal ceramic triode, their anodes cooled by forced air, and their maximum anode dissipation power is 10kW; when at a frequency not higher than 45MHz, their output powers may attain to 12kW. They are mainly applied in industrial high-frequency heating equipments for oscillations or in radio equipments for amplifications.

Ceramic triode (30-600KW)
Type			FU-8785F
Equivalent on abroad			8T85RB
Output power(KW)			12
Cathode	Cathode materials		Thoriated
			Tungsten
	Voltage(V)		12
	Current(A)		40
Main electric parameters	Amplification factor		21
	Inter-electrode Capacitances (PF)	Filament-Grid	22
	(Cathode earthed)	Filament-Anode	0.9
		Anode-Grid	16
Maximum	Maximum anode dissipation (KW)		10
	Maximum grid dissipation (W)		250
	Maximum anode DC voltage (KV)		12
	Maximum frequency (MHz)		45
Cooling			F
Weight (kg)			9
Additional: The information here may be modified with the products variation.
Cooling: F--Forced air cooling S--Water cooling Z--Vapor cooling