SubjectRadio communicationRadio communicationItem typeObjectProvenancePresented by the Rutherford Appleton LaboratoryPhysical materialMetalObject typeRadio communicationInventory No90955Accession Number1992-26DescriptionDouble Crystal Detector Radio Part with paper diagram.Related ItemsMore related itemsCrystal Detector for Radio, by L'Excentro, French, c. 1925Inventory Number 60349Triple Crystal Detector, Early 20th CenturyInventory Number 84133Philips Barretter Radio PartInventory Number 89487Graduated Swivelling Coils For Triple Crystal Detector, Early 20th CenturyInventory Number 28254