TELECOM Digest OnLine - Sorted: Western Lamp Cadences

Western Lamp Cadences

Al Gillis (
Thu, 31 Aug 2006 19:54:42 -0700

Back in the "Good Old Days" Western Electric produced a number of
products that used different lamp on/off cadences to indicate various
circuit conditions. 1A and 1A2, for example had a flash cadence
(~500ms on, 500ms off) and a wink cadence (~250ms off, 750ms on).
There was another cadence on some products that I recall being called
"flutter" which had a very rapid on/off cycle. Does anyone know what
the on/off time intervals of this cadence were?

Thanks in advance!


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