Electronic Metal Detector DIY Kit
  
  
  
  
  
  
  
  
    
      
      
      
      
        
          
            
              
                
                  
  
    
      
      
      
      
    
  
  
      
      
  
                  
                  
                    
                      
                        
                        
        
                        
                            
                            
                            
                            
                              
                                
                                  
                                
                                  
                                
                              
                            
                            
  
  
 
  
      
         
      
      
  
  
  
						
                         
                        
						
          
             
          
                      
                      	                 
                      	
                      			
When the metal detector circuit is placed near a metal object the inductance of its coil changes, and so does the frequency of oscillations. Now the two frequencies will be different, there will be no cancelling, and the radio produces a hissing sound. Hence, the metal is detected.
                      		
                    	
                      
                    
     
                   
                    
                  
                
              
  
            
        
          
        
        
            
 
               
        
		
        
		
  		      
       
      
      
      
    
  
  
  
 
    
    
   
Electronic Metal Detector DIY Kit
            Available:In Stock
- Product SKU: LGKT082
          
₹ 449
           ₹ 599
   
                          
                          
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          Specification
Description
An old pocket radio and a single transistor circuit is used to build this low-cost metal detector. This Electronic Metal Detector DIY Kit is nothing but a Colpitts oscillator working in the medium band frequency and a radio tuned to the same frequency. First, the radio and the circuit are placed close. Then the radio is turned OFF so that there is no sound from the radio. In this condition, the radio and the circuit will be in the same frequency and the same frequencies beat off to produce no sound.When the metal detector circuit is placed near a metal object the inductance of its coil changes, and so does the frequency of oscillations. Now the two frequencies will be different, there will be no cancelling, and the radio produces a hissing sound. Hence, the metal is detected.
Physical Attributes
- Dimensions (cm) L x W x H : 20 x 15 x 5
- Weight (gm): 200
 
        
       
          
       
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
  