HI . Dear byers . I offer for sell lot of 4Pcs  stong tested tubes of model ECC81 made by RFT East Germany original vintage production  ,  tubes are are new in very good condition and have a test results of 100% but with inscription and codes deleted . We are a new seller company in Ebay , but we have a lot of experience in the electronics trade . The products we offer for sale are old vintage production which we buy from the army or from large manufacturers . After you buy a product from us we will pack securely and ship your purchase within 48 hours or the first possible business day after the holidays . If you want us to issue you an invoice for the purchase, please mention this in the payment form . For combined shipping please write to us to specify the exact quantities and weight to calculate the delivery price .The shipments are sent worldwide with priority mail and tracking number by Bulgarian Post or Deutsche post . In case of a problem with the shipments, please contact us first to find a solution to the problem before contacting with Ebay. All additional fees you pay are charged by Еbay under the law of your country . Thank you for interest see my ll other items for sell.