| 摘要 |
1351228 Lamp failure alarms W PRIESEMUTH 15 July 1971 [15 July 1970] 33224/71 Heading G4N [Also in Division H1] Relays 28-30, Fig. 6, suitable for monitoring lamp failure in vehicle lamps 21, 22 have the lamp current through terminals 7, 8 partially by-passed through their coils (see Division H1) to reduce the tendency to hold on, whereby the response to lamp failure is fast. The warning lamps 32-34 are lit through terminals 6, 7. In a modification all the terminals 6 may be interconnected (as indicated by dash line) whereby a single common warning lamp indicates failure of any vehicle lamp 21, 22. |
