Hack-A-Day has a potentially useful workshop tip. Has anyone tried this?
https://hackaday.com/2022/03/06/how-to-solder-to-aluminum-easily/
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Hi Bill, I heard about this many years ago and tried it out. I used a 100-Watt soldering iron with a 3/8 inch tip. It worked, but it was very messy and not very practical, in my opinion. 73, Shlomo 4X4LF
Why bother with the messy oil? I just use a large,hot enough iron to keep a blob of solder molten. Then use an X-acto knife to scratch up the surface of the aluminum through the solder blob. DuWayne KV4QB