[Elecraft] AF1 and small speaker

[Robert Tellefsen]

Dave
Another thing you might try.
I enjoy rummaging in my junkbox for odd inductors
and building passive audio filters.  You could build
one from the contents of your junkbox and include
it in a speaker cabinet with an audio amp.  Then
you would only have one loose item on the desk.
Good luck and 73
Bob N6WG

----- Original Message ----- 
From: "Don Wilhelm" <w3fpr at earthlink.net>
To: "David Wilburn" <dave.wilburn at verizon.net>
Cc: "Elecraft Discussion List" <elecraft at mailman.qth.net>
Sent: Wednesday, April 18, 2007 9:00 AM
Subject: Re: [Elecraft] AF1 and small speaker


> Dave,
> 
> If you are considering 'rolling your own', take a look at Tom Hammond's 
> website (particularly > 
> http://www.n0ss.net/tda2003v_5w-7w_af_amp_v7.pdf)for an audio amplifier. 
>   I use one of these with my K2 and drive a 9 ohm speaker and have good 
> results with it.  I don't know about using the KAF2 directly at the amp 
> input, you may have some impedance matching to contend with, but it 
> should be 'do-able'.
> 
> Fair to Good quality computer speakers work well too.  Some of the 
> really cheap ones I have tried have too much hum for my tastes, but 
> other are fine.
> 
> 73,
> Don W3FPR
> 
> 
> David Wilburn wrote:
> > I was considering getting an AF1 and using it, along with the K2 to 
> > drive a small speaker here.  Possibly figure out a setup where I could 
> > integrate the two into an enclosure, like on the Elecraft Tech Notes 
> > page.  Has anyone played with this setup?  I only found a couple of 
> > comments in the archives.
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