On 17-Dec-2005, K3HVG wrote:

Earl, All of these tubes are commonly available from numerous sources.


FWIW, the sources I usually use:

http://www.radiotubesupply.com Even though Roy is in Ohio, he accepts
Michigan dollars.
http://home.att.net/~esrc/esrcmain.html
http://www.thetubecenter.com/
http://www.vacuumtubesinc.com/
and of course https://secure.tubesandmore.com/ but generally their prices
are higher, unless one of their sale items happens to match what you need,
like the 6688's I picked up for $2.50 each.

There are many more.