9,261
edits
558: Difference between revisions
Jump to navigation
Jump to search
no edit summary
No edit summary |
No edit summary |
||
| Line 5: | Line 5: | ||
|image=GR 558 Case Open A.jpg | |image=GR 558 Case Open A.jpg | ||
|caption=General Radio 558 Amateur Band Frequency Meter | |caption=General Radio 558 Amateur Band Frequency Meter | ||
|series= | |series=558 | ||
|introduced=1928 | |introduced=1928 | ||
|discontinued=1929 | |discontinued=1929 | ||