>Simple question, couldn't find the information >in the manual anywhere. > >What type of bulb is used for the dial light? Jack, I don't think that the manuals have this data. I can't find my notes for my AN/GRC-7 right now, but I'm pretty sure the RT-70 uses a Type 331 lamp, available from Fair Radio. I'll let you know if I find better info. Mike / KK5F