Seventy years ago this month, this couple are enjoying some quality time together with their radio control boat, as shown on the cover of Radio News, May 1955. The secret of a successful cruise was a reliable receiver, such as the one described in the magazine.

The author’s three-tube set reported very reliable service on 27.255 MHz. With a three-watt transmitter, it had a safe range of a mile. The three-tube supreregenerative circuit used an RK61 gas tube detector. While this type of tube sometimes experienced a short life, this was ameliorated by very low current.