[Amps] 120 cycle hum from Henry 2K-4

[johndtate at post.com]

Steve, yes in CW mode too.  It's not coming from audio.

-----Original Message-----
From: Steve Katz <stevek at jmr.com>
To: johndtate at post.com; amps at contesting.com
Sent: Thu, Feb 18, 2010 5:44 pm
Subject: RE: [Amps] 120 cycle hum from Henry 2K-4

Do you still get the same hum if you transmit a CW carrier and not AM?
(Mode switch in CW...)?  If it's the amplifier, you should.  If the mike
is picking up an induced field that may be generated by the amplifier,
you won't.