--- SRY <
southernry_n@...> wrote:
> I'm trying to build a resistance solder unit.
> http://www.girr.org/girr/tips/tips1/solderer.pdf
>
> But this one uses a battery charger. I was hoping for something
> a bit smaller and more home-brew.
But you're not going to find much cheaper, or easier to
build around. You can buy chargers like these brand new
for ~$20-$30, and it comes in a nice metal box with a line
cord, switch and current meter. You could readily modify
it for a footswitch and there's likely room for a dimmer
or ballast for current control inside. Volt amps is volt amps,
for a given power the transformer is going to weigh a given
amount, so I'm not sure how much smaller you expect this
to get. By using a charger you get the housing, cords and
controls built in for you, so it doesn't get any easier than
that.