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!
Don't recall ever seeing the one you refer to. But, wasn't the fast flash called wink hold? I know the other was visual ringing.