Re: Help to identify inductor - Mockingboard IIc project

["Michael J. Mahon" <mjmahon@aol.com>]

Henry wrote:
> We're calling out to the Apple II community to ask if anyone knows what type 
> of inductor this is what value it might be?
>
>
>
> http://reactivecomputers.gotdns.com/Inductor%20length%20-%201%20cm.JPG
>
> http://reactivecomputers.gotdns.com/Inductor%20width%20-%206%20mm.JPG
>
>
>
> As you'll see from the pictures it is 1 cm long by 6 mm wide.  The wire 
> comes out on each side of the inductor and passes through the ferrite core a 
> total of 5 times.  It's exactly the same as the inductors on the IIe 
> motherboard by the power connector.  On the IIe schematic it's listed as 
> Apple's part number 156-0005.  Maybe there is a way to look up and 
> cross-reference this old part number?
>
>
>
> Thanks in advance for everyone's help.  The Mockingboard IIc is coming along 
> well and Bill and I hope to have some more good news about it in the coming 
> months.

Don't lose any sleep over it.  It's just a simple ferrite decoupling
inductor--no more than a couple of microHenrys.  It's purpose is to
suppress high frequency (MHz) noise on the power line, and is usually
of marginal utility in this application.

-michael

Music synthesis for 8-bit Apple II's!
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