Philips 6076 (equivalent to European type QBL3.5-2000 ) high power (1200 W anode dissipation) tetrode transmitter tubes. They are unused items. As a transmitter tube good for 1500 watts out at up to 1 GHz. The price is PER TUBE. Limited quantities available. This item is shipped from Britain, in North America or Asia please allow 2 to 3 weeks for delivery.
Here is the spec sheet for this part: http://scottbecker.net/tube/sheets/030/q/QBL3.5-2000.pdf