I blew the fuse on my little sequencer, and it's a tiny, unmarked one that's soldered in. Does any one know the amp rating? Any suggestion on improving the design? I was thinking of adding an external fuse holder in case I overload it again. I use it for animated rope light sculptures. Thanks.

I have a corner in the cellar of my home set aside for repairing speakers. Most of my repair work is done there. Some of the larger speaker repair/restoration jobs are done on the first floor.
Here is picture of my work bench. There is a darkroom timer (top center) that's left over from a darkroom I once had in that same spot. On the left side of the pic, a set of plastic clamp rings can be seen. They are used with spring clamps to hold down fresh refoams and/or when gluing down gaskets. ...

What’s wrong with metal cones? Nothing. It’s the crossover (that’s the problem). Metal cones and “soft” cones require different treatment . . . most crossovers that seem adequate with soft cones simply will not sound good with metal.

All cones break up (for a number of reasons, and in a number of ways). All cones beam (some more than others). Soft cone drivers address the issues with internal damping and “controlled” decoupling, to greater or lesser success . . . and sometimes ...