Another excellent and simple idea. I cannot imagine how I would manage if I was to lose my sight, I do have Diabetes, but my sight is ok, touch wood, but knowing these ideas could benefit radio users everywhere. Thank you for a great and simple solution.I was thinking of another solution that might work for him. Glue a plastic dial skirt behind the channel selector knob and cut a notch on top that represents his favorite channel. If you can’t find a knob that already has a skirt, cut one out of a plastic pill bottle lid or laundry soap measuring cap. Glue a bar cut from a pin or piece of plastic (see attached) above the notch.
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Cheers guys.