madiarasias
New Member
Hi everyone. Hoper yyour having a nice day and can spare some time to help me out. I am building Power Supply for a 50 W music amp. Now I have the transformer (80va) and the suitable bridge rectifier and capacitores. But my problem is the pins on the bridge recitifer are too big to slot into the holes on the circiut board. So I drilled them out with a 1.5mm drill bit but now when I try to solder there is vrey little metal left on the circiut board to connect to - And I am a pretty good solderer too ! - But i just end up burning the plaster stuff which then turns black or I try bridging over to some metal with a massive solder bridge. So now I have finished soldering and it looks terrible - I cannot trust the electricla connections, even some solder dribbled onto other tracks and Ive had to cut the tracks everywerher to keep my circuit proper. The lady who sold me this circiut board was a complete retard, i asked her specifically for some board that would work for a power supply with big electro capacitors, as it turned out it was the rectifier that was too big not the caps - and she sold me this piece of **** with tiny holes.
So my query to you is: Where do you get your boards for PSs and,
If you have to drill them out how do you do it ?
I am really worried about it because this is my first big electonics project and I read that your soldering on the power supply must be really good and safe etc etc. And Ive tried my best but this board has let me down.
Also when I turned the transformer onto the mains it started crackling and got very hot very quickly, Is this normal? It was possibley one of my solder joints that was crackiling but the heat was very worrying. Maybe I had phase and neutral supply wronglly connected? Because on the picutre it had blue at the top and brown on the bottom, but I know phase is brown and blue is neutral so it turend it round. Does that even matter ?
thanks for your help
So my query to you is: Where do you get your boards for PSs and,
If you have to drill them out how do you do it ?
I am really worried about it because this is my first big electonics project and I read that your soldering on the power supply must be really good and safe etc etc. And Ive tried my best but this board has let me down.
Also when I turned the transformer onto the mains it started crackling and got very hot very quickly, Is this normal? It was possibley one of my solder joints that was crackiling but the heat was very worrying. Maybe I had phase and neutral supply wronglly connected? Because on the picutre it had blue at the top and brown on the bottom, but I know phase is brown and blue is neutral so it turend it round. Does that even matter ?
thanks for your help