"jim beam" <spamvortex@bad.example.net> wrote in message
news:fMadnVd_eY6IPHzVnZ2dnUVZ_o3inZ2d@speakeasy.ne t...
> jim L wrote:
>> Still can't get pitted area on old switch to take solder. I'm using
>> rosin core solder with flux, but no go. BTW, it's a lead free flux -
>> but the only flux available @ local hw store if that makes any
>> difference. I'm not an expert on soldering by any means, but - would
>> acid core stick - or has metalurgy changed to where nothing will work?
>> I no longer need this switch, but would like to be able to repair it for
>> practice and my own curiosity.
>>
>> Jim
>>
>>
> suspect you need a higher wattage iron. those are big fat copper cables -
> they suck heat like crazy.

I have a weller gun - I'm sure it has plenty of wattage. Solder sticks
fine to the good metal on the contact - but it seems to avoid the pitted
area. I've scraped it with a file & pick. then again - it may be my
technique.