Thank you for viewing. This is a pair of Hytron VT-25A vacuum tubes, manufactured under a Western Electric contract to U.S. military JAN specifications. Manufactured: April 1944 Includes original box (marked U.S. ARMY / U.S. NAVY) These are extremely rare vacuum tubes that I have carefully stored as part of my collection for many years. I intended to use them in my audio system someday, but I no longer have plans to do so, so I will pass them on to someone who needs them. Condition: Although they appear to be unused, I have not confirmed their operation as I do not have the equipment to do so. The appearance is very clean, and the printing and pins are in good condition. Highly recommended for collectors and vintage audio enthusiasts. [Product Details] ・Manufacturer: Hytron Corporation (Western Electric contract) ・Model: VT-25A (equivalent to Type 10/10Y) ・Quantity: 2 tubes (pair) ・Year: Received April 1944 ・Standard: JAN (Joint Army-Navy) ・Accessories: Original box (one for each tube) [Shipping] I will carefully protect them with cushioning material and pack them to prevent damage. Shipping is planned via Rakuraku Mercari or Yu-Yu Mercari. [Please Note] ・Since they have not been inspected, they are sold as-is (no claims/no returns). ・As vintage items, there may be minor scratches or stains due to aging. ・Please understand that we cannot guarantee operation or accept returns before purchasing. #WesternElectric #Hytron #VT25A #VT25 #10Y #vacuumtube #vintagevacuumtube #audio #tubeamp #pairvacuumtube #JAN #USARMY #USNAVY #militaryvacuumtube #WesternElectricvacuumtube #high-endaudio #vintageaudio #tubeamp #collection #withoriginalbox #unused