Inductor questions

[Govmnt_Lacky]

I was able to dig up some 500mH inductors but I have a question as to whether or not they can be used for a wah circuit.

They are, as I said, rated at 500mH BUT.... they measure about 235 ohms resistance. I know that the usual whipple, fasel, etc measure far less than this however, could these inductors be used for a wah circuit? If so, what would need to be changed to compensate for the higher resistance

The inductors look like this but wrapped in plastic and they have flying leads:

http://www.hurricaneelectronics.com/images/inductor.jpg

Thanks for the help 

[Govmnt_Lacky]

Any ideas?

Bump-digity 

[merlinb]

235 ohms is negligible compared with everything else in the (typical) circuit, so it won't be a problem (I make the maximum available Q about 26 which is still way beyond what you actually need). You can always increase the 33k damping resistor a little to compensate, but I doubt you'll actually need to.

[Govmnt_Lacky]

235 ohms is negligible compared with everything else in the (typical) circuit, so it won't be a problem (I make the maximum available Q about 26 which is still way beyond what you actually need). You can always increase the 33k damping resistor a little to compensate, but I doubt you'll actually need to.

Thanks Merlin! 

Next step is to slap it into a circuit and see how they sound!

[Joe Hart]

I have some old radios and TV's and such that have inductors. I wish I could measure their inductance. Is there any other way to tell? Do they have any markings like resistor color bands or the codes stamped on some capacitors?
-Joe Hart

[Govmnt_Lacky]

I have some old radios and TV's and such that have inductors. I wish I could measure their inductance. Is there any other way to tell? Do they have any markings like resistor color bands or the codes stamped on some capacitors?
-Joe Hart

The inductors that I found have part numbers on them (how convenient) and they are even stamped as 500mH rating. I ran the part number through Google and it crossed to the real deal. So I decided to take some DMM resistance readings and they all measured between 230-242 ohms.

[Brymus]

The inductor on my Boss wah is a transformer,sounds good.
It measures 52R
I have a bunch of inductors and small transformers pulled from old TVs ect.
I am going to breadboard the Mc Coy circuit and see if any of them sound good.
I also have the small Radio Shack and Mouser trannies that are supposed to work so I will compare the lot.

[Brymus]

I was able to dig up some 500mH inductors but I have a question as to whether or not they can be used for a wah circuit.

They are, as I said, rated at 500mH BUT.... they measure about 235 ohms resistance. I know that the usual whipple, fasel, etc measure far less than this however, could these inductors be used for a wah circuit? If so, what would need to be changed to compensate for the higher resistance

The inductors look like this but wrapped in plastic and they have flying leads:

http://www.hurricaneelectronics.com/images/inductor.jpg

Thanks for the help 

Is there any way you could measure yours (mm or inches) and count the windings (it doesnt look like many)
those look like several of the salvaged ones I have.

[bluesman1218]

Someday I'm gonna have to learn about inductors. I have been saving them whenever I strip a board. Are they the same as chokes? Like I said, gonna hafta learn 'em. 

[Govmnt_Lacky]

Is there any way you could measure yours (mm or inches) and count the windings (it doesnt look like many)
those look like several of the salvaged ones I have.

That picture was only intended for reference  

The actual inductor that I have has many, many, many more windings!