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PM-8911

(revised version of PM-8901)

SOLID-STATE BEACON or "Bubble Light"

PM-8911

B40-8 Susquehanna 4008 with PM-8911
photo by: Ken Kraemer

B40-8 Susquehanna 4004 with PM-8911 in Halloween attire
photo by: Ken Kraemer

crop of above photo

SD40-2 Santa Fe 5043 with PM-8901 (earlier unit with higher base)

U30C Burlington Northern 5383 with PM-8901

Metra F40PHM No. 213 with roof mounted PM-8911s (or PM-8913) together with a roof mounted horizontal 20585 Gyralite (red lens on locomotive's left)
The date of photo makes it possible that one or both beacons could be the latest PM-8913 model - which looks identical to the PM-8911.
photo by: Sean Gash (1999)

PM-8911-4

Unit with dome removed (side view)

Unit with dome removed (plan view)

Unit inverted showing circuitry

PM-8901 circuit board

Schematic Diagram of PM-8911

Schematic Diagram of PM-8901

Converting PM-8911 to 12-volts