This Siemens RS1007 tube is a rare find for vintage audio and video enthusiasts. Made in Germany, this vacuum transmitting tetrode is also known as QB3/300 and 6155. It is a unit type and is suitable for various electronic devices. The tube is in excellent working condition and has been tested for optimal performance. The brand Siemens is renowned for producing high-quality electronic components, and this RS1007 tube is no exception.  Whether you're a collector or looking for a replacement for your vintage electronics, this Siemens RS1007 tube is a must-have.