Jumper Wire Gauge and Material for Phono Preamp?

JustinJ · 31st August 2010, 01:28 PM

Hello,

I decided to build the Tetra Phono Preamp Tetra Phono All-in-One & Broskie Impedance Multiplier .

I was looking at the instructions and need to solder filament jumper wires.

My question on jumper wires. What gauge wire should I use for the jumper wires? Also, does the material make a difference? Should I leave the sheath on the wire or remove it?

Thanks,

Justin

bob91343 · 31st August 2010, 05:11 PM

None of that matters a great deal. If you are carrying filament current in a wire, you decide how much voltage drop you can tolerate and make sure its resistance is low enough. Typically, for short runs up to an Ampere, you can use 20 AWG but if you want to be safe you can go a little bigger. Insulation is unimportant as long as there is no danger of shorts. And always use copper unless there is a reason not to.

There is so much mythology in this stuff. Use common sense and you will do fine. No magic.

JustinJ · 2nd September 2010, 12:49 PM

Thanks for the information.

It sounds like copper wire at 18 gauge will be all right. I may just leave the insulation, since it should not cause any problems.

31st August 2010, 01:28 PM	#1
JustinJ diyAudio Member Join Date: Apr 2010 Location: Central Pennsylvania	Jumper Wire Gauge and Material for Phono Preamp? Hello, I decided to build the Tetra Phono Preamp Tetra Phono All-in-One & Broskie Impedance Multiplier . I was looking at the instructions and need to solder filament jumper wires. My question on jumper wires. What gauge wire should I use for the jumper wires? Also, does the material make a difference? Should I leave the sheath on the wire or remove it? Thanks, Justin

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31st August 2010, 05:11 PM	#2
bob91343 diyAudio Member Join Date: Mar 2010	None of that matters a great deal. If you are carrying filament current in a wire, you decide how much voltage drop you can tolerate and make sure its resistance is low enough. Typically, for short runs up to an Ampere, you can use 20 AWG but if you want to be safe you can go a little bigger. Insulation is unimportant as long as there is no danger of shorts. And always use copper unless there is a reason not to. There is so much mythology in this stuff. Use common sense and you will do fine. No magic.

2nd September 2010, 12:49 PM	#3
JustinJ diyAudio Member Join Date: Apr 2010 Location: Central Pennsylvania	Thanks for the information. It sounds like copper wire at 18 gauge will be all right. I may just leave the insulation, since it should not cause any problems.

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