It depends on whether your amp has the QSK board B-6 or not. Non QSK amp
keys a relay directly, The QSK version varies unpon whether your are keying
the VOX input or Key IN, but either way, you are triggering a chip..
----- Original Message -----
From: "Dick Hanson" <email@example.com>
Sent: Friday, March 07, 2008 11:00 AM
Subject: [Amps] LK-450
> Does anyone here know the PTT keying circuitry for this amp?
> I just need to know whether it keys the relays directly to ground or
> there is a keying transistor involved.
> Thanks very much.
> Dick, K5AND
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> 2:01 PM
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