[ARC5] More on Bashless T-17 Microphone Resurrection

[hwhall at compuserve.com]

 I confirm that, about it being a thermo-plastic. That's why there's how-to methods for using laser printer output to transfer to copper circuit boards as an etch resist. Print the circuit on slick paper & transfer the toner onto the copper with a hot iron.

 
Wayne
WB4OGM

 

-----Original Message-----
From: Jim Wiley <jwiley at gci.net>
To: Mike Everette <radiocompass at yahoo.com>; hwhall <hwhall at compuserve.com>; arc5 <arc5 at mailman.qth.net>
Sent: Wed, Jun 22, 2016 9:52 am
Subject: Re: [ARC5] More on Bashless T-17 Microphone Resurrection


    
Printer "toner'" as used these days in xerographic copiers and      printers based on the same principle is, I believe,  a type of      powdered plastic.  The plastic powder melts under the heat of the      "fuser", becoming one with the paper being printed upon.  There      are a number of formulations for toner, some including powdered      iron and carbon particles.  Some of the original formulations were      primarily iron oxide, but that has changed to powdered plastic for      modern machines.   Others may have more information. 
    
    
- Jim, KL7CC
    

    
    
  
    
    
    
On 6/22/2016 4:17 AM, Mike Everette via      ARC5 wrote:
    
    
      
        
This is an old            thread to be sure; but I have a question.
        

          
        
What is the            material used in black computer printer cartridges?  If it's            carbon, what about refilling a mic element using one of the            DIY cartridge kits?
        

          
        
73
        

          
        
Mike
        

          
        
WA4DLF
        

          
        
        
          
            
              
                                  
                  From:                  "hwhall at compuserve.com" <hwhall at compuserve.com>
                  To:                  arc5 at mailman.qth.net 
                  Sent:                  Thursday, June 2, 2016 7:23 PM
                  Subject:                  Re: [ARC5] More on Bashless T-17 Microphone                  Resurrection
                 
              

                
                  
                                        
 >Sometimes its possible to put new                        carbon from old telephone transmitters 
                        
                        When I was researching carbon mike resurrection,                        I found a 1951 Western Electric ad illustrating                        carbon mikes (look like T-1) being refilled at                        the factory.
                        
                      Wayne
                        WB4OGM
                                          
                    
 
                    
                    
                      

                      
                      

                      
                    
                  
                
              
            
          
        
      
      
      
      
      
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