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       MCR1 Receiver Spy
      Radio Harleys Biscuit Tin Radio 
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        Circuit Diagram, Service
      Manual, Service
      Information,  Schematic Diagrams and Manuals  | 
   
 
  
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       For Repairing, Restoration and
      Servicing of Vintage and Modern Electronic Equipment  | 
   
 
  
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      Data
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      Circuit  Component Values  and Layout available 
      Details Below 
      As a Download 
      Click Here 
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    MCR1 Receiver Spy Radio   
      Designed during the second half of the war, the “Biscuit” was a full-range, highly sensitive,
      super heterodyne receiver with 5 miniature tubes. 
	 
	It was powered by a special battery, or with a separate power supply by AC/D.C. of 97 to 250 volts. 
	 
	This receiver was delivered in a 2-pound “Huntley-Palmer” cookie tin which also contained 4 interchangeable coil units, 3 batteries or 2 batteries and a power supply pack, 30 feet of aerial wire and 10
      feet of ground wire. 
	 
	A battery provided an average of 30 hours’ reception time. 
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    	Four knobs on the same side controlled aerial adjustment, sensitivity, regeneration for telegraph reception, and the frequency dial. 
     
      Dimensions:	3˝ X 2 X 8˝ inches 
       
      Weight:	About 2 pounds 
	 
	Ten thousand of these sets were built and approximately half were widely distributed in the clandestine networks. 
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    | A well kitted out spy | 
    
        
    
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      Data
      and
      Circuit  Component Values  and Layout available 
      Details Below 
      As a Download 
      Click Here
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      MCR1 Receiver Spy Radio 
    Harleys Biscuit Tin Radio 
	
	Manuals are Available Worldwide as a 
	Download.
      Data
      including circuit, Component Values and Layout,  plus power pack 18 
	pages 
	Manual 18 A4 pages worldwide 
	 
		( For all Payment Options ) 
	( Please Click the Payment Links Below )
       
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     We do all we can to provide 
    the very best that is available for you. 
    But in the unlikely event that any data should not be as you expected. 
    A refund is always available. Kind Regards Allen and Alanna.  | 
   
 
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