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We are very pleased to offer this unique and extremely useful product. These little guide key savers will repair virtually any broken guide key on an octal vacuum tube. Simply line up the broken guide key mark on the base of the tube with the guide key on the socket repair unit. Put some silicon glue in between the base and saver, let it dry and wipe of the excess glue and you have a tube almost good as new. No more accidentally installing your tubes with broken guide keys the wrong way!
These are also great for tube dealers who want to tell their good tubes but don't want to risk having their customers install the tubes incorrectly. This listing is for 6 pieces but we have many in stock, order as many as you need.