The Anchor model 101-75 "Suburbanite" was the more stylish replacement for their first model, the 101-50. Electrically it was largely unchanged; a single 6AK5 tube with permeability tuning, switched between high and low bands. The "automotive "dashboard" styling is very much in evidence here -- take a look at any late 1940's car to see the influence! The heavy metal cabinet is covered with the same thin imitation leather cloth of the 101-50, but the control panel is much different.
There is an ingenious mechanism behind that single tuning knob, much of which is devoted to making the pointers move from one channel-indicator window to the other. Turning the tuning knob clockwise, a collection of cams and levers make the pointer move horizontally from channel 2 to 6, in typical "slide-rule dial" fashion. As the knob goes through the center of its range, the pointer drops out of sight, and a switch turns the unit off. Continuing clockwise rotation, the pointer appears again, this time in the right-hand window, and moves more-or-less smoothly from channel 7 to 13. The tuning slugs just move in and out of their coils in the usual way, as in the 101-50.
For some reason, 101-75s are not often seen, though the older 101-50 and the fancier 101-100 are relatively common.
Updated October 22, 2003