I used one similar to this (little bigger) for over 5 years on a daily basis in my CB store. Or if your doing a lot of work then step up to a Weller but this did ok for normal circuit board work. It is adjustable for temp with on/off switch and the iron should be replaceable (plug-in) in addition to the tips. Quite a few different models/makes but this will give you an idea of what Im talking about.
Solder Station, Hobbyist, ZD-932 | MPJA.COM
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