We have added a new page to our builder's resource page with recommended lead content solders and where to buy them from a number of U.S. vendors.

Don't forget that we also have links for 'Ask Dr. solder', 'Recommended Solder Stations' and a 'Soldering Tutorial' on the Builder's page.

See: http://www.elecraft.com/Apps/K2info.html

I've copied the solder info below.

Thanks to Tom Hammond, N0SS, for compiling this list for us!

73, Eric and Wayne

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The following vendors will carry the following lead-content solders as long as they are available for sale and use in the United States. (Which appears to be for the foreseeable future.) These solders are widely available and can be ordered via each distributor's web page or over the phone.

Note: All vendors shown below offer flux-cored solder wires with other flux chemistries and content. The products shown below have been tested and found suitable for assembly of Elecraft kits. Other flux types and chemistries may (or may not) be suitable, but have not been tested.


DigiKey   www.digikey.com  (800) 344-4539

 KESTER

   .015" Dia. (28 AWG)  63 Pb/37 Sn  1 lb roll

     DigiKey #         Kester #       Description
KE1203-ND #24-6337-9703 '285' RMA (Rosin, Mildly Active) Flux
     KE1405-ND         #24-6337-8806  '245' No-Clean 1.1% Flux
KE1110-ND #24-6337-0007 '44' RA (Rosin, Highly Active) 3.3% Flux

   .020" Dia. (25 AWG)  63 Pb/37 Sn  1 lb roll

     DigiKey #         Kester #       Description
KE1201-ND #24-6337-9702 '285' RMA (Rosin, Mildly Active) Flux
     KE1401-ND         #24-6337-8807  '245' No-Clean 1.1% Flux
     KE1409-ND         #24-6337-8834  '245' No-Clean 2.2% Flux

   .025" Dia. (23 AWG)  63 Pb/37 Sn  1 lb roll

     DigiKey #         Kester #       Description
KE1202-ND #24-6337-9718 '285' RMA (Rosin, Mildly Active) Flux
     KE1404-ND         #24-6337-8809  '245' No-Clean 1.1% Flux
KE1109-ND #24-6337-0018 '44' RA (Rosin, Highly Active) 3.3% Flux


Mouser    www.mouser.com  (800) 346-6873

 KESTER

   .015" Dia. (28 AWG)  63 Pb/37 Sn  1 lb roll

     Mouser #          Kester #       Description
533-24-6337-9703 #24-6337-9703 '285' RMA (Rosin, Mildly Active) Flux
     533-24-6337-8806  #24-6337-8806  '245' No-Clean 1.1% Flux
533-24-6337-07 #24-6337-0007 '44' RA (Rosin, Highly Active) 3.3% Flux

   .020" Dia. (25 AWG)  63 Pb/37 Sn  1 lb roll

     Mouser #          Kester #       Description
533-24-6337-9702 #24-6337-9702 '285' RMA (Rosin, Mildly Active) Flux
     533-24-6337-8807  #24-6337-8807  '245' No-Clean 1.1% Flux
     533-24-6337-8834  #24-6337-8834  '245' No-Clean 2.2% Flux
533-24-6337-0010 #24-6337-0010 '44' RA (Rosin, Highly Active) 3.3% Flux

   .025" Dia. (23 AWG)  63 Pb/37 Sn  1 lb roll

     Mouser #          Kester #       Description
533-24-6337-9718 #24-6337-9718 '285' RMA (Rosin, Mildly Active) Flux
     533-24-6337-8809  #24-6337-8809  '245' No-Clean 1.1% Flux
533-24-6337-18 #24-6337-0018 '44' RA (Rosin, Highly Active) 3.3% Flux


Newark    www.Newark.com  (800) 463-9275

 KESTER

   .015" Dia. (28 AWG)  63 Pb/37 Sn  1 lb roll

     Newark #          Kester #       Description
34C5666 #24-6337-9703 '285' RMA (Rosin, Mildly Active) Flux
     34C5662           #24-6337-8806  '245' No-Clean 1.1% Flux
34C5653 #24-6337-0007 '44' RA (Rosin, Highly Active) 3.3% Flux

   .020" Dia. (25 AWG)  63 Pb/37 Sn  1 lb roll

     Newark #          Kester #       Description
90B5872 #24-6337-9702 '285' RMA (Rosin, Mildly Active) Flux
     00Z1222           #24-6337-8807  '245' No-Clean 1.1% Flux
     34C5665           #24-6337-8834  '245' No-Clean 2.2% Flux
93B8307 #24-6337-0010 '44' RA (Rosin, Highly Active) 3.3% Flux

   .025" Dia. (23 AWG)  63 Pb/37 Sn  1 lb roll

     Newark #          Kester #       Description
34C5667 #24-6337-9718 '285' RMA (Rosin, Mildly Active) Flux
     01C6854           #24-6337-8809  '245' No-Clean 1.1% Flux
34C5654 #24-6337-0018 '44' RA (Rosin, Highly Active) 3.3% Flux


 MULTICORE (previously Ersin Multicore)

   63 Pb/37 Sn  5-Core  370 Rosin Flux  1 lb roll

     Newark #          Multicore #    Description
     72C1193           MM00979        .022" (0.56 mm) Dia.

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