To put things in proper perspective - there is nothing wrong with the "buck".
The only problem is that you do not understand what you are doing. 😉
Oh, and I understand much more now than when I started…I learn by doing stuff and asking lots of what may seem like stupid questions. Having drawn out my circuit, and my taking advice here I was able to see the short and understand what was wrong. Also got lots of other helpful info, so thank you again everyone.
Good.
Just do not touch any other gear than your own until you have gained knowledge and confidence.
Nice build! However for the sake of safety, I strongle advice you to redo the mains input and switch wiring. May I suggest you find someone with slightly better soldering skills....
I also cannot see a mains fuse, if there is none make sure you install a properly rated fuse in series with the transformer primary. Home build equipment must comply with the safety regulations just like factory stuff.
I also cannot see a mains fuse, if there is none make sure you install a properly rated fuse in series with the transformer primary. Home build equipment must comply with the safety regulations just like factory stuff.
Thanks for this advice. There’s a fuse on the input switch, mains side of transformer, 1.6a. Should I have another then?
Re the soldering, can definitely redo that, what would you be looking for?
One fuse is enough so that's fine.
Regarding the soldering, looks like it did not flow or wet the wires and terminals very well. This will probably fail sooner or later, especially when exposed to vibrations from the speakers. Try a google on 'good solder joint' to get the idea. What solder did you use. Easiest works old fasion lead-tin solder with flux core.
Regarding the soldering, looks like it did not flow or wet the wires and terminals very well. This will probably fail sooner or later, especially when exposed to vibrations from the speakers. Try a google on 'good solder joint' to get the idea. What solder did you use. Easiest works old fasion lead-tin solder with flux core.
Thank you so much. I’ve now got it working with a battery, but intend to add a 9vdc reverb unit. Once I’ve completed that board I shall try your suggestion.