Yahoo Groups archive

Homebrew PCBs

Index last updated: 2026-04-28 23:05 UTC

Thread

Soldering: Re: TIP120 Darlington

Soldering: Re: TIP120 Darlington

2009-05-07 by Lee Studley

>To properly solder that, though, you'd need to reflow it - it uses the
>copper on the PCB as a heatsink so you want a full solder joint
>between the pad and the pcb, and most irons can't pump that much heat
>in there. I use a cheap hotplate.

Another Trick from my Vacuum tube amp repair days: To solder a chassis
or plane, use a hot-air gun
in addition to the beefy soldering tip. This will greatly increase the
heating/soldering capacity.

-Lee

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.