[Elecraft] K3 to Al-811 Amplifier

[Harold Fitzgerald]

I used an AL-811H for many years with my K3. Coax connection and PTT is all
that is needed. 

Some other things to think about:
- Ameritron 811H only need about 60 watts or so to drive it. At the
beginning, I ran about 100 watts into the amp, but after a few years I
noticed that the finals had silvery spots on the grids. That's because I was
over driving the amp and melted the them. Only use enough in to get the
required out. 60 to 70 watts is plenty on that amp.


Harold "Marty" Fitzgerald W5MF
Fitz6 at swbell.net


Not an AL-811, but I've used an AL-1200 with my K3. I used an RCA cable for
amplifier keying and a PL-259 jumper for RF. 

I did not connect ALC, I instead adjusted the K3's power output as
appropriate.

73 de Dick, K6KR


-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of pastormg2 at verizon.net
Sent: Friday, December 13, 2013 10:02 AM
To: elecraft at mailman.qth.net
Subject: [Elecraft] K3 to Al-811 Amplifier

Hi Guys, I would like to hook up my K3 to an Ameritron Al-811 Amplifier. I
assume that I connect the K3 output to the Amplifier Input. An the Keying
Cable that is in the back to the Relay Plug on the Al-811? I see an ALC
Output and ALC Adjustment knob. But I probably don't need to use those. But
then again I could be wrong. Has anyone used the AL-811 with the K3? Thanks
in advance. Mark Griffin, KB3Z
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