From a June 1969 General Electric Mobile Radio advertisement:
GENERAL ELECTRIC MOBILE RADIO QUALITY…SPEAKS FOR ITSELF.
Only the all solid-state MASTR Royal Professional Series uses silicon transistors, electronic voltage regulation, a computer-like Sensing and Control Network, cast aluminum receiver chassis, and plated-through printed wire boards.
So, when you invest in a RoyalProfessional mobile radio, you’ll get all the communications capability you pay for. Because it stays on the job working for you while lesser radios will be “out of service”.
So you can have continuous transmit capability.
Because the Sensing and Control Network automatically compensates for potentially damaging heat and high voltage stress conditions, while allowing transmissions to continue.
So, before you buy your next mobile radio – check out the MASTR Royal Professional. You deserve to consider going First Class