Easy and safe way to hold and power your tubes.
- Easy and safe operation
- Cathode protection switch
Tube holder to support all S series (student) electron tubes for easy and safe operation. The five-pin sockets for the tube are concealed inside the tube holder. A cathode protection switch is integrated into the tube holder, to protect the heated cathode from excessive voltage. The base plate has a slot for attaching the students’ Helmholtz coil pair. Terminals: 4 mm safety sockets.