Telefunken RGN4004 RGN2504 2004 KL76303 1561 (4V) Black Mesh Plate Like U52 5U4G For Sale

You are offerding for one super rare NOS tested Telefunken RGN2504 RGN4004 KL76303 1561 (4V) Black Mesh Plate Like U52 5U4G made by Telefunken in 1930s. The tube was carefully tested at the NOS range with no short and no gas, tightly balanced. This tube is a 4-pin and 4V heater voltage version. If you don’t use 4V heater, you must use an adapter to plug in place of 5U4G family. Just plug and play. Adpter sockets are on request if you need. What you see is what you get. Thanks for offerding

P/S: The shipping fees in the listing is by regular mail (normally Vietnam post) taking from 12-25 days depending on buyers' local customs. To some regions, it can take even longer than that. Besides, Vietnam post is not always available to some countries in South America, Northern Europe or Africa. Please ask me before paying. If you want to use express shipping services like DHL, Fedex or UPS express taking 3-7 working days, you have to pay an extra of around $68.75. (For order over $1000, Express shipping service is a must. Please wait for the invoice to pay). Please let me know so that I can send you an invoice. If the item(s) purchased may not arrive or faulty, please don't hesitate to contact me before opening cases on . I am willing to reach to a solution and make you completely satisfied. Thanks a million.