Up for sale here is this beautiful used RCA JAN CRC 5U4G VT-244 hanging filament coke-bottle rectifier vacuum tube.  This has a K2E date code, for March/April 1943.  This was made for the US military and as such is an extremely nice tube.

I tested it on my B&K 747B tube tester, and it pegged the meter at 120/120, with no shorts or grid emission, on a scale of 0-120, where 65 is minimum good.  

This is a gorgeous tube, with smooth black plates, hanging filaments, a huge round mica plate at the top, tons of silvering, and a solid dimpled 6-sided foil getter at the bottom.  This is an amazing tube, that's for sure.  This is guaranteed to work well for you.  Please see my pictures for details.

US shipping and handling is $4, and international is $14.  I accept Paypal.  If you have any questions, please ask.

I have a number of other tubes & sockets, collectibles, Magic cards, and vintage electronics listed--feel free to take a look!