I have the follow 183/483 globe tubes for sale:This is a Sylvania 183 triode globe tube with an engraved base. Tested on a Hickok 539A tube tester, where minimum is 1,170 and new/nominal is 1,800. This tube tested at 1,700. Asking $150 This is a great Sparton 483 triode globe tube with an engraved base. Tested on a Hickok 539A tube tester, where minimum is 1,170 and new/nominal is 1,800. This tube tested at 2,400, better than new. Asking $200 This is a closely match pair of Sparton 483 globes. Tested on a Hickok 539A tube tester, where minimum is 1,170 and new/nominal is 1,800. These tubes tested at 2,100 and 2,050, better than new and within 3% of each other. One tube still has its warranty label, dated 1932. Asking $450
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