Placing the 2uH power inductor WWW.BUILDAUDIOAMPS.COM project 3

[pascalbythree]

http://buildaudioamps.com/project-3/

Hey forum people,

Does anybody know weither the line, marked by a blue line, is correctly placed? Should i put a GND wire under it?

Question 2: Is the power inductor as in photo left upper corner, the right choice ? Is there a difference between axle and no-axle?

Greets, Wouter van Wegen, PascalByThree

 

[Mark Tillotson]

It should be an air-cored coil - if it has a metal/ferrite core you'll get distortion especially if the core saturates.

 

[chrisng]

Yes, use air core inductor. Solder it perpendicular to the PCB.

You can DIY:
Here's an easy way to make your own 2uH output inductor.

 

[pascalbythree]

Thank you, but does anybody know where i can buy the coil online? Instead of making one myself ?

Anyone can select it from www.farnell.com for me? To order it in The Netherlands?

 

[jacques antoine]

Instead of making one myself ?

This is diyaudio.

 

[chrisng]

does anybody know where i can buy the coil online? Instead of making one myself ?

The inductance is not critical, 1 to 2µH will do. If you insist on buying off the shelf, check this out.