Hello Paul,
Just for this situation it's not a blessing to hear that high.
I'm still able to hear up to 21 Kc (it was 28 Kc about 15 years ago).
So I'm looking forward for this LPF board! I'll contact Elecraft and see if
that will do the job.
I'll try the Elco's and see what the result will be.
Thanks for the reply!
73's, Evert
-----Original Message-----
From:
[hidden email]
[mailto:
[hidden email]] On Behalf Of pd0psb
Sent: Sunday, November 08, 2009 21:57
To:
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Subject: Re: [Elecraft] [K3] Elecraft
Evert,
There's a small LPF board in betatest phase which cuts off anything above
K3's passband.
May be you can ask Elecraft to test a sample.
Especially people with good hearing (congrats, you are an exeption nowadays
:-) can benefit form this board. It's a 24db/oct chebychev with low noise
opamp that doesnt have any coloration in-passband.
As a quick solution you could also try 2 elco's over the HP outputs, I tried
4,7 or 10uF.
This will give a 6db/oct roll off.
I've read the LPF filterboard might become generally available someday for
people wishing to clear the above-passband products.
73'
Paul
PD0PSB
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