Knight 400 Tube Checker Allied Radio Chicago in Original Box $31.00 USD Sold on: 2014-Feb-08 Marketplace: eBay 1 Treasure 0 Trash 100% Detail: Still in the original box with manual and tube chart. I tested it on two different tubes and tester works as expected. I do not believe this tester has been used. Very nice and very clean. Free shippi... More Relevance Historical Items
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