Paladin79
Previously MOT: Cables For Less
You can, yes.I will extract all the "old" solder that's on there until I see inside of the pin right ? I can see that some pins even on some other tubes have a little hole opening on the tip the pins.
And then apply a new solder ?
With solder removed, and after soldering. I usually keep the tube parallel with the work surface when doing the soldering. You can slide small diameter solder inside each pin before applying heat, if not capillary action will draw it in anyway but you may have a bit more cleanup. If you were in the US I would offer to fix them for you free as I have with many other folks on here.
Rosin core solder can often work if you do not find liquid rosin flux, since it is not easy to see what is truly happening inside each pin, I do not like to take chances and I do not want to have to do the process over again.
https://www.kester.com/Portals/0/Documents/Knowledge Base/Hand Soldering Short Course.pdf
There is plenty of info out there on soldering, Kester used to do a six week live soldering course, I was fortunate to go through that but then I have taught soldering and electronics.
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