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ID = 21193
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Tube type:  Transmitting Tetrode, air cooled 
Identical to RS290

Base SPECIAL TUBEBASE in general Sidecontact and top contact.
Filament Vf 10 Volts / If 3.25 Ampere / Direct
Description 100 Watt Senderöhre Telefunken RS290 (RS 290) 
Dimensions (WHD)
incl. pins / tip
100 x 195 x 60 mm / 3.94 x 7.68 x 2.36 inch
Weight 245 g / 8.64 oz

rs290_sock_1.png RS290: data-sheet
Anonymous 15 Collector

RS290: Telefunken
Robert Schmalstieg

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