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A microwave tube is an electron tube operating in the microwave frequency range, based on vacuum and electron beam technology. Extensive manufacturing experience backed up by proven heritage is most important for manufacturing high quality tubes.
Let us review NEC Microwave Tube, Ltd. history.
| 1924 | Began manufacturing of triode |
|---|---|
| 1936 | Opened Tamagawa tube plant |
| 1944 | Started development of microwave tube |
| 1951 | Started development of C-band Helix TWT for radio links |
| 1964 | Started development of C-band high power TWT |
| 1973 | Started development of space TWT |
| 1975 | Delivered Ka-band high power TWTs and klystrons |
| 1988 | Delivered space TWTs for BS-3 project |
| 1993 | Registered for ISO 9001 firm |
| 1994 | Started development of MPM |
| 1997 | Moved to Sagamihara Plant |
| 2002 | Established NEC Microwave Tube, Ltd. by a spin out of the Microwave Tube Division from NEC Corporation. |
| 2003 | Registered for ISO 14001 firm |
| 2004 | Started development of MMPM |
| 2007 | Registered for ISO 27001 firm |
