Up for sale here is this NOS NIB Sylvania JAN CHS 2A3 output tube. This has a 225 date code, for the 25th week of 1952, and was Made in USA. It has black plates, a bottom wide D getter with foil strip, and a huge patch of silvering. The box will have a moderate to heavy amount of wear and may be missing the top or bottom flaps, and may have some writing. This was tested by a previous owner, but I do not know the test results. It 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 more tubes and other vintage electronics listed--feel free to take a look!