i wouldn't trust regular electric solder or jbweld if it is coming in contact with the beer. lots of electric solder is lead based. who the hell knows what is in jbweld.
silver plumbing solder should be ok.
Tap: Centennial IPA (SMASH)
Tap: Dogfish Head Ginger Saison
Bottle: Stone 11th Anniversary Black IPA clone
Secondary: Flemish Brown Sour Ale