20 May 2012
18 May 1942: Air Ministry expert
18 Mon. Very mild, mostly cloudy, showers. To Morden to buy fish. It isd a pleasant walk to Morden along Merton Way. Alan Spooner called to show me his new 3-speed back cycle wheel. Ron Cooper called in his car and stayed the night. We went to Wimbledon Common to see the new beam aerials that have been erected there. He came home and worked out the wavelength and angle of the beam from the estimated size. He is an Air Ministry expert.
Posted by Tony in Devon