supergun question

If I use a 1n4001 rectifying diode for the 12v and 5v lines in my supergun, I assume the white striped end goes to ground and the other end is tied to the power line before it hits the switch?

Also, if I'm using this, I don't need any fuses as they replace them functionally?

Thanks

ummm a diode will do nothing for your puposes

I believe most supergun builders prefer to cut the power at the AC line, not the 5 and 12 lines. What power supply are you using?

The Webmiester said:

I believe most supergun builders prefer to cut the power at the AC line, not the 5 and 12 lines. What power supply are you using?

Click to expand...

I'm pretty sure he's using an external tabletop.

he was looking for one a month ago.

werejag said:

ummm a diode will do nothing for your puposes

Click to expand...

Actually, it has a purpose.

I'm using an Ault/Jameco sc200 external PSU

It can be used to short the power line to ground in case you hook up the power backwards.

In that case the stripe goes towards the power line.

If you are using the diode to normally run the current THROUGH it (and not as a protection against backwards power) you should keep in mind that the diode is only rated for 1 amp of current.

Even if you are using it to protect against backwards power connections the 1 amp limit of the diode will easily be exceeded and the diode will short out. This means that when you connect the power correctly it will either put the power supply into shutdown mode or it will pop its fuse.

RJ

it will not do what you want. it will only cause problems for you.

but as i see you do not want this answer. you are only seeking an answer that goes with your idea.

enjoy

Why dont you just hook up the power correct the first time? Use a multimeter. Are you changing the adapter or something.

My SC200 had a 5 or so pin output that connected to the female socket and then to a DPDT switch then to the board.

I apologize. I was informed by another supergun builder that the rectifyer diode would perform the same function as a fuse since the sc200 is only fused on the AC side and not the DC side. I see now that it is rather useless (at least on the 5v line) due to 1 amp limit. I was told if it was used on the amplified sound output (speaker +) that it can help protect the sound from shorting out.

I will use fuses instead, but can I also fuse the speaker + line to help protect my pcbs?

those tabletops don't really put out much juice.... SO no need for a fuse of any type.