Hersteller
- Jackson
- James Millen Manufacturing Company
- Janel Laboratories
- Jaybeam Limited
- JBL
- JDSU
- Jemco Industries
- Jenn-Air
- Jetstream
- JIL
- Johnson
- JRC Japan Radio Corporation
- Jupiter
- Jura
- JVC
- J. W. Miller
Interessante Anleitungen
The Hewlett-Packard Model 5061A Cesium Beam Frequency Standard is a compact, self-contained frequency standard which uses a cesium beam tube resonat