The mighty Cobra 135! This deluxe base station was top of the Dynascan line in 1975 with a price to match ($400-450.) Features AM/SSB, digital clock and alarm, plus everything else that was available on a CB radio in the mid-1970s. Strangely enough, when 40 channel radios were introduced on January 1, 1977, there was no direct replacement for the Cobra 135. The new top banana was the Cobra 139XLR, an update of the 23 channel 139.