S series (1966 to 1986) Previous
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The S line of meters was introduced in 1966 and replaced the P series over the next 2 years. It was a complete redesign, the main change involving the frame assembly - it was now a one-piece 'wrap-around' assembly that also included the register mount and brake magnets. The only disadvantage is that complete disassembly of the meter is required to get at the disk. The same methods used previously to prevent interference between stators were carried over to this line of meters - slotted disks on the 2-stator models and laminated disks on the 3-stator models. Also, the S used the same white fiberglass-reinforced base that was introduced with the previous P0 line of meters. The model designators follow the numbering scheme GE used with their V-60 series of meters - i.e., Sangamo's S5S = GE's V-65S, S3A = V-63A etc. S
Photo by David Uy