The RS282 is an RF pentode with a 100 Watt anode dissipation.

The valve is marked as having an 8 Volt heater and takes 1.6 Amps, the cathode is oxide coated.

The anode is connected to the top cap and the cathode and control grid are connected to independent side connections.

There is an helical inner screen that is connected to the anode.

Despite its impressive appearance this Telefunken transmitting triode has lowly ratings. Intended as a Class B RF amplifier, maximum rated RF output is only 110W at a maximum permissible frequency of 6MHz. The most interesting thing about it is that it has an indirectly-heated oxide-coated cathode. The anode rating is 1000 V max.

The wide glass tube envelope is 55 mm in diameter and, excluding the special base pins, is 240 mm tall.

 
Absolute Maximum Operating Conditions

Triode	Vh	Ah	Va	Vg	gm	μ
	8.0	1.6	1,000	-185 mAa_	5.5	12.5

Thanks to Frank Philipse for supplying the above datasheet

This exhibit was last updated on 02 February 2008 {find valves by name}