They were stored away since that test. See our other auctions for more radio, broadcast audio, music stuff! The item "Vintage pair General Electric 6550A metal base Power Tubes" is in sale since Saturday, November 14, 2020. This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Parts & Accessories\Vintage Tubes & Tube Sockets". The seller is "micrental" and is located in Portland, Oregon.This item can be shipped worldwide.