Antique radios, Old Time Radios
		
		
	 
	
 
     
          
     
	
	
	
	
	CV76
	
	
	
	
	
	
		
			
				
					
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								 Country: 
								Great Britain (UK) 
							
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						| Identical to | 
						
							CV76
							
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							| Predecessor Tubes | 
							
								
									CV56  
								
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									Successor Tubes
								
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									CV76A  
								
									CV76B  
								
									CV76C  
								
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							| Was used by | 
							Radar | 
						 
					
					
					 
					
						| Filament | 
						Vf 6 Volts / If 2 Ampere /  Half indirect  | 
					 
					
					
						
							| Description | 
							
								 
	S-band strapped magnetron. Same structure of CV56, with heavier radiator and requiring higher magnetic field to counteract the increased anode voltage. 
	Operating at 25KV, 40A, it was used Type 277 early warning radar since early 1943, the high-energy pulses being generated by a rotating spark-gap.  
								
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							| Information source | 
							
								
								Taschenbuch zum Röhren-Codex 1948/49   
								 -- Original-techn. papers.   Callick, Metres to Microwaves
								
								
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