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I am building an O-Scale two rail model of "Q" GP-7. "Q" GP-7 #209 was high on my priority list to model as it served on the Aurora Division in 1954 as did several other GP-7's. (ref: Mike Spoor Vol. I, CB&Q In Color p 7.) I recalled seeing a photo of "Q" GP-7 in a Zephyr and as I recalled there was something unique about that photo. I pulled my copy of Zephyr #47, 2/03 to look at the photo again. It was a photo of "Q" GP-7 #209. Yes, GP #209 did have a unique feature in that June, 1952 photo that doesn't appear in later photos I've found on-line of #209. The unique feature of #209 involved a piece of conduit running along the fireman's side of the short end cab roof that lead to a speaker mounted on the nose of the unit (refer to the photo on p. 8 in the "Q and A Section" of Zephyr #47 ) The photo caption says it is a waterproof and shockproof speaker developed by Operadio Co/DuKane. The speaker had been developed and patented by Phil Weibler's father during WWII for the Navy. After WWII the company was looking for a new application of the speaker system and their product developed into the "talk back radio" for communications between the yardmaster, the switch crew and other yard personnel. I have three questions about the system. I am hoping that a CB&Q member can help me answer them.
Thanks, Dave Sarther Tucson, AZ
__._,_.___ Posted by: sartherdj@aol.com __,_._,___ |