Apple ][ Plus Soldering

[RC14]

Apologies in advance if this is just rehashing common knowledge - I have done research but I'm honestly paranoid that I'll break the computer or that there's some info I've missed that is essential for working on older machines.

A while ago I got an Apple ][ Plus which, despite being working before it was shipped, wasn't working upon arrival.  I posted here, and some helpful people told me it was likely the video solder joint that had broken.

Now, a few months later, I'm sheltering in place and bored, and have decided to finally get it working again - but I haven't ever soldered before.  I'm going to get equipment and practice boards, but does anyone have any advice about equipment to buy (I have a soldering iron in mind, recommended by someone else on these forums, but I don't know what other equipment I need), soldering that video joint in particular, or even soldering in general?

 

[trag]

My one big recommendation is to get a bottle of liquid solder flux, such as this:

https://www.amazon.com/dp/B004RIF3BM/?coliid=ILLIJY0JW504Q

Many difficulties during soldering and especially desoldering can be laid at a need for more flux.

Flux forms a conductive layer that helps conduct heat from the soldering pencil to the work.   As well as preferentially combining with oxygen and thus preventing oxidation of the work.

 

[blusnowkitty]

Try to avoid those cheap soldering pencils and save up for something nice like a Hakko FX-888D: https://www.amazon.com/Hakko-FX888D-23BY-Digital-Soldering-Station/dp/B00ANZRT4M