Re: Oscitrol Signal Lights, was [CBQ] E Unit Headlights

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Subject:	Re: Oscitrol Signal Lights, was [CBQ] E Unit Headlights
From:	"Harold Krewer" <HKRITS@hotmail.com>
Date:	Wed, 15 Jun 2022 22:49:44 +0000
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Thread-topic:	Oscitrol Signal Lights, was [CBQ] E Unit Headlights

Charlie,

You are correct, one of the few facts correct in the Wikipedia article. Chicago firefighter Jerry Kennelly actually invented the system that rotated the reflector behind a stationary bulb to produce the effect. Later on this was adapted to move sealed-beam light housings in the same manner.

There are conflicting accounts of whether the Mars candy family invested in Kennelly's company or flat-out bought the rights from him. Either way, Mars Signal Light Co. of Chicago produced the lights. If I caused any misunderstanding, my apologies.

The reference to "Triple 8" likely comes from the Model 888 light, designed for fire equipment and still available today from successor company Tri-Lite Inc.

BTW, Railroad and emergency vehicle Mars light components are generally NOT interchangeable, as the vehicle systems are designed to work on 12VDC and the railroad units on 64-74VDC.

Harold Krewer

Causing More Problems Than He Solves Since 1961

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