8 pin tube broken key way

[mcrracer]

I have seen somewhere before an adapter you can use on an 8 pin tube when the center key way has been broken off. Does anyone know what the piece I am looking for is called and where I can get about 4 of them.
Phil for my father (mcrracer)

[MGW]

tubesandmore.com part number P-STKY-1

[Richie]

just about all of the tube places have them.

http://www.tubesandmore.com/scripts/fox ... =ZADAPTERS

http://www.radiodaze.com/tube-plugs.htm

[mcrracer]

Thanks