WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
Building, troubleshooting and testing of these amplifiers should only be
performed by someone who is thoroughly familiar with
the safety precautions around high voltages.
Im searching the www without luck for data on this tube i got NIB from a friend.
The whole tube is screened, including a screencap that is placed over the anode topcap.
no one?
its an really old valve totally clad in metal folded into a seam running along the side and opens up for the anodeconnection with a separate metalcap..