About freezing point all day; dismal. Alan Spooner called in afternoon with a pentode valve for test. Surprised to find I had bought a Marconi pick-up like his. Drew him out two wave-trap circuits. Started writing letter to Fred Fraine. Mrs.Akroyd to tea.Played her an organ record of Christ Church Westminster by the organist she knew when she and Mr.Akroyd worshipped there years ago. The organist W.G.Webber has been to her home here and she was pleasantly surprised to know he had made organ records which were available to the public.