UG.LOS: Difference between revisions
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(Created page with "Back to Control Functions ==Origin== ... ==Removal== The signal was brought into use in June 1978. It replaced GPL SN.276 border") |
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[[File: 1978-03.png | border]] | [[File: 1978-03.png | border]] | ||
==Reincarnation== | |||
At some point the GPL was changed back into a limit of shunt lamp. | |||
==Conversion to LED== | |||
The signal was converted to a red-red GPL in March 1999: | |||
[[File: 1999-01.png | border]] | |||
Revision as of 23:13, 15 November 2014
Back to Control Functions
Origin
...
Removal
The signal was brought into use in June 1978. It replaced GPL SN.276
Reincarnation
At some point the GPL was changed back into a limit of shunt lamp.
Conversion to LED
The signal was converted to a red-red GPL in March 1999:
