VALVO 5678 tube, subminiature pentode

VALVO 5678 tube, subminiature pentode

These are filament type, fully shielded, subminiature pentode designed for service in RF applications requiring economy of space, weight and battery drain.  The flexible terminal leads may be soldered or welded directly to the terminals of circuit components without the use of sockets. Standard inline subminiature sockets may be used by cutting the leads to a suitable length.