Fasel wah inductor use in preamp

[JGR]

So I'm about to start building my bass preamp with inductor driven midranges and I am planning on using a couple of red Fasel inductors from wah wah pedals. Do you think there would be any issues with the current/voltage rating of these parts in an Ampeg style preamp circuit?

Thanks

JR

[Ray Ivers]

JR,

Do you think there would be any issues with the current/voltage rating of these parts in an Ampeg style preamp circuit?

I think you really won't know until you try them and test for saturation, as the Ampeg SVT mid-control circuit signal levels are a whole lot higher than those in a wah pedal.

A quick Google search turned up the following specs for the Fasels, which you probably already have:

Fasel Red 580mH 15R; Fasel Yellow 540mH 23R

One guy also posted somewhere that he found yellow Fasels that measured from below 200mH to above 600mH, so you might want to measure the ones you have. I also saw voltage ratings of 250V and 350V - bear in mind that I have no idea if any of this is accurate or not.

Ray

[JGR]

Ray, thanks for the reply and the info - I haven't had any luck getting specs on them, so any info ya'll have is greatly appreciated!

JR

[rocket]

JR,

you probably already have:

Fasel Red 580mH 15R; Fasel Yellow 540mH 23R

One guy also posted somewhere that he found yellow Fasels that measured from below 200mH to above 600mH, so you might want to measure the ones you have. I also saw voltage ratings of 250V and 350V - bear in mind that I have no idea if any of this is accurate or not.

Ray

The Voltage rating doesn't mean you can put 250Vdc across the inductor, that would be over 3000W (DC resistance of ~ 20 Ohm) and vapourize it.

[Ray Ivers]

The Voltage rating doesn't mean you can put 250Vdc across the inductor...

Obviously... nor did I claim that in my post. I assumed it was understood that this was a dielectric-strength rating, just as 600V-rated wire is not designed to withstand being connected from a 600V supply to ground.

Ray