I do not see any information on the forums currently. Does anyone have retirement dates for the Frisco's roster of Baldwin Switchers? Information on all 3 models, VO-660, VO-1000 and DS-4-4-1000, would be great to know.
According to Lou Marre/John Baskin Harper: VO-660 - SLSF 600-601, later renumbered SLSF 60-61. The authors do not indicate a retirement date for these units, but at least one was sill on the roster in 1965. Perhaps someone else can shed additional light on these two units. VO-1000 - SLSF 200-237 retired between 1968-1979. The later retirements appear to be those units repowered with EMD prime movers. If you have a specific unit in mind, I can check. DS-4-4-1000 - SLSF 240 retired July 1968, the remainder, December 1969 Best I can do. GS
Mostly wanted to find out which of the units were the last to be retired. There are a few pictures in the archive dated in 1978, some of which are of units still in the black and yellow scheme. I found one picture of SLSF 205 dated June of 1979.
You are correct. I have amended my earlier reply so I don't appear stupid. VO-1000m units SLSF 200-206, 210, 215 were retired in 1979. Specifically, SLSF 205 was retired in July 1979. Unit SLSF 204 was wrecked and was retired in 1978. All the later retirements were re-powered with EMD 12-567-C prime movers. GS