Safety, Safety, Safety....

While I'm waiting for another batch of tubes to arrive for the amp, I think I will address a couple electrical safety concerns this weekend. Take a look at this picture, do you see any problems?



OK, well first someone before me installed a 3-wire electrical cord and made a nice solid ground contact to the chassis with the green wire. That's great! But - there's no grommet or strain relief in the hole in the chassis where the power cord enters. The sharp edge of the chassis could eventually cut into the power cord. Also there's no strain relief, nothing to prevent a sharp pull on the cord from damaging the wires where they connect to the solder tabs in the chassis. So I'm going to try to find a grommet to fit the hole, and figure out some way to provide some strain relief.

One more safety item - there is no provision for fusing in the power supply. If something shorts, the only protection is the mains circuit breaker - 20A in the case of my house! That's a lot of current. So I'm going to install a fuse holder next to the line cord inlet in the chassis, with a 3 amp or so fuse installed.