Tube DIY Asylum

Posted by Jeff Davison (A) on July 02, 2009 at 15:40:10

In Reply to: RE: terminal lugs..... posted by casouza on July 02, 2009 at 15:36:22

looking for a turret that I can stake to a PCB

• RE: terminal lugs..... - casouza 16:34:22 07/02/09 (8)
  In Reply to: RE: terminal lugs..... posted by Jeff Davison on July 02, 2009 at 15:40:10

  HI
  Digikey stocks copper terminal turrets, good enough if you assure a tight mechanical fit, wipe/shine the component leads with steel wool or emery paper and use silver-bearing solder.
  
  Search for terminal turret on the Digikey site, mark the box IN STOCK, click on the data sheet sign at the far right to see pix and dimensions.
  
  Keyelco.com also makes teflon-based turrets.

  • Key Electronics turret terminals   (Open in New Window)

  
  

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  • RE: terminal lugs..... - Jeff Davison 16:50:25 07/02/09 (7)
    In Reply to: RE: terminal lugs..... posted by casouza on July 02, 2009 at 16:34:22

    
    the Key ones are brass, not copper.

    
    the ones they have that are silver over copper are min qty. = 500

    all I need is 16

    :(
    

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    Edits: 07/02/09

    • RE: terminal lugs..... - casouza 17:51:01 07/02/09 (6)
      In Reply to: RE: terminal lugs..... posted by Jeff Davison on July 02, 2009 at 16:50:25

      http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=1562-2K-ND
      
      OR
      
      http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=1502-2K-ND
      
      Have a minimum QTY of 1
      Have fun!
      

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      • RE: terminal lugs..... - Jeff Davison 19:31:46 07/02/09 (5)
        In Reply to: RE: terminal lugs..... posted by casouza on July 02, 2009 at 17:51:01

        Thanks, but those are plated brass.. Looking for silver
        
        JD
        

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        • RE: terminal lugs..... - casouza 22:03:41 07/02/09 (4)
          In Reply to: RE: terminal lugs..... posted by Jeff Davison on July 02, 2009 at 19:31:46

          I see that you want to make a perfect replica of the Audio Note Ongaku, down to the turrets.
          
          Last time I checked 99% of the resistors and capacitors have tinned copper leads. You want those parts to connect well with each other...and IMHO a silver turret is not the shortest path.
          
          A turret is just a turret, a support, it allows one to get a firm contact between parts leads. You want the electricity to flow directly from part to part, not from a cap lead to a turret and then another solder joint to a resistor lead.
          
          A few japanese DIYers make amps by cleaning/scraping the parts leads and twisting them together firmly (no turrets, 3-dimensional layout).
          If the amp powers up and works perfectly with no solder, then they solder everything. (quoted from L'Audiophile, Jean Hiraga, circa 1987).
          I do not recommend this approach for safety reasons, however the key to a good electrical connection is a good, clean and TIGHT mechanical joint before soldering. Using silver turrets will not make copper-leaded parts sound any better.
          
          Have fun :)
          

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          • RE: terminal lugs..... - Jeff Davison 23:23:29 07/02/09 (2)
            In Reply to: RE: terminal lugs..... posted by casouza on July 02, 2009 at 22:03:41

            almost....

            I mentioned that I wanted to use these in a PCB. I will have no components soldered directly to the turret. The turret will be used for wirinig to be connected to the PCB. I make my own PCB's that I silver plate the traces. A solid silver turret, between a silver wire and a silver plated PCB is what I'm after. I'd like to avoid tin and brass in the interface (besides the trace tin in the silver solder).

            JD
            

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            Edits: 07/02/09

            • RE: terminal lugs..... - casouza 02:15:08 07/03/09 (0)
              In Reply to: RE: terminal lugs..... posted by Jeff Davison on July 02, 2009 at 23:23:29

              Or these?
              http://www.allelectronics.com/make-a-store/item/TT-8/FEED-THROUGH-TURRET-TERMINAL/-/1.html
              
              Google silver turret terminal
              or solid silver turret terminal.

              • http://www.allelectronics.com/make-a-store/item/TT-8/FEED-TH   (Open in New Window)

              
              

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            • RE: terminal lugs..... - casouza 02:11:00 07/03/09 (0)
              In Reply to: RE: terminal lugs..... posted by Jeff Davison on July 02, 2009 at 23:23:29

              I respect perfectionism, it leads to great accomplishments.
              What about these:
              http://cgi.ebay.com.my/ws/eBayISAPI.dll?ViewItem&item=390010111369&ssPageName=MERC_VI_RCRX_Pr8_PcY_BIN_Stores_IT&refitem=390005121900&itemcount=8&refwidgetloc=active_view_item&usedrule1=CrossSell_LogicX&refwidgettype=cross_promot_widget&_trksid=p284.m184&_trkparms=algo%3DCRX%26its%3DS%252BI%252BSS%26itu%3DISS%252BUCI%252BSI%26otn%3D8
              

              • silver plated turrets   (Open in New Window)

              
              

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          • RE: terminal lugs..... - Caucasian Blackplate 22:13:39 07/02/09 (0)
            In Reply to: RE: terminal lugs..... posted by casouza on July 02, 2009 at 22:03:41

            Wow, I will have to look into that sometime. I have been a little surprised that AN kits don't do the lead over lead on turrets so much. I have built 2 amps that have no terminal strips, and a preamp that had one in the power supply, but it got toasted in shipping.
            

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