sundance-communications.com/forum Forums Other TDM Phone Systems 1A2 and Comkey Telephones & Systems I blew a fuse...

Before I got the fuse, I just stripped a piece of jumper wire and it worked fine

A fuse is just a strand of n gauged wire. It doesn't matter what it looks like. As long as it's in series with the circuit you are protecting, the job is done.

I don't know much about fuses except that they're rated in amps and that there's something called "slow blow." I think a 1A2 KSU requires "fast-blow."

What's the difference? Does anyone know if it would be OK to solder a fuse in-line that is from an auto parts store (of specified amperage, of course)?

Sticking a stripped piece of jumper wire in place of the blown fuse sounds too much like sticking a penny in the 110V fuse box socket (like my grandmother used to do in her rickety wooden house).

OK, so it's just 10 volts, but. . . .

The difference between a normal fuse and a slow blow is the slow blow will allow for a surge where the fast blow will pop at the first sign of overload. There is not much difference in the type of fuse as long as the current rating is the same. The voltage rating should also be observed as it will effect the time it takes for the overload to blow the fuse. When using a piece of wire it is best to test it with an amp meter so you can have some protection and not be like the penny in the fuse box.

I used to keep a piece of zip cord in my bag for emergencies. One strand from the zip cord would replace a fuse - temporarily - until the right one could be obtained.

A single strand would blow on a dead short, unlike a piece of jumper wire.

Sam

Oh, a zip cord strand. That's what kc7gr was saying above, except he called it speaker voice-coil wire. I get it. Cool.

24 ga no blow works great let me know if I can get you a 1000 foot roll of it and what color you would like ie w/bl w/r or y/bl LOL