Newbgene1591

I’m wanting to replace my burnt up transformer out of my soldering station. It has two separate transformers for the soldering iron and the Desoldering. Both transformers have an input of 115v. Output of 0-12v-0-25v, but the one for the Desoldering has secondary output of 0-7v-0-24v. the part number comes up but the part is no longer available. I’m still sort of new to this stuff, I wouldn’t care to replace both of the transformers if I had to. thanks Here’s pictures of the one

Hello all, I’m fairly new to electronics and I know the basics but I’ve always been intrigued. Well I’ve been wanting to build my own spot welder for lithium batteries to fix my power tool batteries. I plan on using the transformer out of a microwave, now the part I’m confused about is the relay timer. How can I go about doing that and wiring it up? Also could I use the board from a microwave being it has the relay and the timer already built in? another thing I’m curious about is I have an old Tenma soldering station which inside has 2 transformers which are small. Is there anyway I could use it and just reverse certain things? thanks