Posted by k0wa@swbell.net on URL: http://elecraft.85.s1.nabble.com/K3-and-amplifiers-such-as-ALS-600-tp3300117p3304124.html
No, you do not need it. I have an AL82 I am keying right out of the back of the K3. Works fine. Usually, it is a 12 volt time for keying the Ameritron Amps. I am not sure I would do that with just any old amp, but the Ameritrons use 12 volt keying line and not the 130 of the SB Line.
Lee - K0Wa
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From: HowardZ <[hidden email]>
To: [hidden email] Sent: Wednesday, July 22, 2009 10:16:01 AM
Subject: Re: [Elecraft] K3 and amplifiers such as ALS-600
Is it best to use a buffer send/ptt device like the Ameritron ARB-704 with
the K3?