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| Re: [Photos/Videos] The Q70 LIMITED-SBS, The Little Q56 That Couldn't, And More! (332853) | |||
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Re: [Photos/Videos] The Q70 LIMITED-SBS, The Little Q56 That Couldn't, And More! |
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Posted by Joe V on Sat Feb 9 20:35:47 2019, in response to Re: [Photos/Videos] The Q70 LIMITED-SBS, The Little Q56 That Couldn't, And More!, posted by Henry R32 #3730 on Sat Feb 9 20:31:38 2019. Isn't the LED color determined by the frequency, pulse, wavelength, or whatever of the electrical supply ?The CTA Evanston Line with its 5K cars is coded Purple. |
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