New, unused US-made GE vacuum tube JAN 5750 / 6BE6, in original box. The JAN 5750 vacuum tube is electrically fully compatible with the 6BE6. Furthermore, the 5750 vacuum tube is a heptode designed for frequency conversion in AM radios and the like, just like the 6BE6, and shares the same heater voltage (6.3V), pin arrangement, and major operating characteristics. The highly reliable 5750 is a high-reliability tube manufactured for military and industrial use, based on the consumer-grade 6BE6. It can be replaced without any circuit modifications. It is also compatible with the European name EK90 and the Soviet version 6A2P (6А2П). The JAN 5750 is equivalent in electrical characteristics and pin arrangement (MT9 base) to the following vacuum tubes and is compatible with them: 6BF7 / 76189 / E88CC: 6189 and below. E88CC is a high-reliability version according to European naming conventions. This is equivalent to the United States Military Standard, also known as MIL-STD or Defense Standard. This JAN 5750 vacuum tube conforms to military specifications. Recently, the price of JAN standard vacuum tubes has been soaring in the market. Please take a look at the photos and make your judgment.