[TenTec] Hercules II power output (low?)

[Tom Lutz]

I recently bought the Hercules along with the Ten Tec supply and have the
exact same problem.  But in my case the power is low on 20, 12 and 10.  I
too called Ten Tec and they told me the same thing, send it in.

I will be curious to see if anyone responds to your message.  Keep me
informed, ok?

73, Tom, W0ZR 

-----Original Message-----
From: tentec-bounces at contesting.com [mailto:tentec-bounces at contesting.com]
On Behalf Of jon_kanter at charter.net
Sent: Monday, March 28, 2005 12:19 PM
To: tentec at contesting.com
Subject: [TenTec] Hercules II power output (low?)

Hi All,
I recently purchased an old Hercules II power amp. I'm running it on a
marine deep cycle battery that I got at Walmart (115AmpHour- biggest one
they had), with a 15amp charger.
The problem is that the amp doesn't appear to produce rated power on all
bands. In fact, driving it with a 100W transmitter, I can only get the rated
500W output on 10m. On 40m and 20m I can only get about 300W out. This is
either into a dummy load or the antenna tuner.

The schematic shows pots for bias adjustment, but no indication of what it
should be.  

I called Ten-Tec, but they just recommended to send it in for service. I
thought I'd first see if anybody on this list had some knowledge about this
they were willing to pass along. Does anyone out there have experience that
might be of help?

Appreciate any assistance you can provide.
Thanks!
73,
Jon AF1M

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