1 Valvo EF183 / 6EH7 New Old Stock Vacuum Tube made by Philips, at the Heerlen Plant
All were made in the same year and month, and either week 4 or 5.
Each tube has a number on the top with green painted on the tip at factory
Sale is for 1 tube
 
All tubes are New Old Stock In the Original Box

Please ask any questions
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