This is a very hard to find item, and my husband has 100's and many different brands and sizes. This is a 813, RF amplifier tube, good condition, bought to use in a ham radio, he has built his own things for many years and had a repair shop. Now,we need to make room for new modern things, like grand kids. all the tubes we will be listing are good, most are new in their box, and returnable if they do not. If you need a tube and we have not put it in the shop we may have it in a box some wh ...click for details
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